WO1997033987A1 - Verfahren zur herstellung von n-geschützten d-prolinderivaten - Google Patents
Verfahren zur herstellung von n-geschützten d-prolinderivaten Download PDFInfo
- Publication number
- WO1997033987A1 WO1997033987A1 PCT/EP1997/001262 EP9701262W WO9733987A1 WO 1997033987 A1 WO1997033987 A1 WO 1997033987A1 EP 9701262 W EP9701262 W EP 9701262W WO 9733987 A1 WO9733987 A1 WO 9733987A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- amino acid
- acid derivative
- proline
- protected
- cyclic
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 26
- ONIBWKKTOPOVIA-SCSAIBSYSA-N D-Proline Chemical class OC(=O)[C@H]1CCCN1 ONIBWKKTOPOVIA-SCSAIBSYSA-N 0.000 title 1
- -1 N-protected proline Chemical class 0.000 claims abstract description 70
- 244000005700 microbiome Species 0.000 claims abstract description 44
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 125000004122 cyclic group Chemical class 0.000 claims abstract description 11
- 125000004104 aryloxy group Chemical group 0.000 claims abstract description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 10
- 239000001257 hydrogen Substances 0.000 claims abstract description 10
- 125000003118 aryl group Chemical group 0.000 claims abstract description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 7
- 229960002429 proline Drugs 0.000 claims description 87
- 241000186073 Arthrobacter sp. Species 0.000 claims description 23
- 230000000694 effects Effects 0.000 claims description 23
- 102000004190 Enzymes Human genes 0.000 claims description 22
- 108090000790 Enzymes Proteins 0.000 claims description 22
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims description 12
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- 241000589180 Rhizobium Species 0.000 claims description 11
- 230000036983 biotransformation Effects 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- 241000589776 Pseudomonas putida Species 0.000 claims description 9
- 125000003545 alkoxy group Chemical group 0.000 claims description 9
- JXGVXCZADZNAMJ-LLVKDONJSA-N (2r)-1-phenylmethoxycarbonylpyrrolidine-2-carboxylic acid Chemical compound OC(=O)[C@H]1CCCN1C(=O)OCC1=CC=CC=C1 JXGVXCZADZNAMJ-LLVKDONJSA-N 0.000 claims description 7
- 241001250076 Achromobacter piechaudii Species 0.000 claims description 7
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- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 241001673062 Achromobacter xylosoxidans Species 0.000 claims description 6
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- 150000008575 L-amino acids Chemical class 0.000 claims description 5
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- 125000000623 heterocyclic group Chemical group 0.000 claims description 5
- 241000186063 Arthrobacter Species 0.000 claims description 4
- 150000008574 D-amino acids Chemical class 0.000 claims description 4
- 235000019445 benzyl alcohol Nutrition 0.000 claims description 4
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- 125000001931 aliphatic group Chemical group 0.000 claims 2
- 150000002500 ions Chemical class 0.000 claims 1
- 125000000229 (C1-C4)alkoxy group Chemical group 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 32
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- 238000012163 sequencing technique Methods 0.000 description 5
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
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- 241000894007 species Species 0.000 description 3
- UBQCWSGRNIOFFC-NSHDSACASA-N (2s)-1-(2-phenylacetyl)pyrrolidine-2-carboxylic acid Chemical compound OC(=O)[C@@H]1CCCN1C(=O)CC1=CC=CC=C1 UBQCWSGRNIOFFC-NSHDSACASA-N 0.000 description 2
- RQYKQWFHJOBBAO-JTQLQIEISA-N (2s)-1-benzoylpyrrolidine-2-carboxylic acid Chemical compound OC(=O)[C@@H]1CCCN1C(=O)C1=CC=CC=C1 RQYKQWFHJOBBAO-JTQLQIEISA-N 0.000 description 2
- 0 *[C@](C(O)=O)N(*)C(*)=O Chemical compound *[C@](C(O)=O)N(*)C(*)=O 0.000 description 2
- 125000002373 5 membered heterocyclic group Chemical group 0.000 description 2
- ODHCTXKNWHHXJC-VKHMYHEASA-N 5-oxo-L-proline Chemical compound OC(=O)[C@@H]1CCC(=O)N1 ODHCTXKNWHHXJC-VKHMYHEASA-N 0.000 description 2
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 2
- 241001453369 Achromobacter denitrificans Species 0.000 description 2
- KXDAEFPNCMNJSK-UHFFFAOYSA-N Benzamide Chemical compound NC(=O)C1=CC=CC=C1 KXDAEFPNCMNJSK-UHFFFAOYSA-N 0.000 description 2
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 2
- 150000008567 D-prolines Chemical class 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
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- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 238000004809 thin layer chromatography Methods 0.000 description 1
- 150000003628 tricarboxylic acids Chemical class 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000005199 ultracentrifugation Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P41/00—Processes using enzymes or microorganisms to separate optical isomers from a racemic mixture
- C12P41/006—Processes using enzymes or microorganisms to separate optical isomers from a racemic mixture by reactions involving C-N bonds, e.g. nitriles, amides, hydantoins, carbamates, lactames, transamination reactions, or keto group formation from racemic mixtures
- C12P41/007—Processes using enzymes or microorganisms to separate optical isomers from a racemic mixture by reactions involving C-N bonds, e.g. nitriles, amides, hydantoins, carbamates, lactames, transamination reactions, or keto group formation from racemic mixtures by reactions involving acyl derivatives of racemic amines
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/78—Hydrolases (3) acting on carbon to nitrogen bonds other than peptide bonds (3.5)
- C12N9/80—Hydrolases (3) acting on carbon to nitrogen bonds other than peptide bonds (3.5) acting on amide bonds in linear amides (3.5.1)
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P13/00—Preparation of nitrogen-containing organic compounds
- C12P13/04—Alpha- or beta- amino acids
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P41/00—Processes using enzymes or microorganisms to separate optical isomers from a racemic mixture
Definitions
- the present invention relates to new microorganisms which are capable of an N-protected proline derivative of the general formula
- N-protected cyclic D-amino acid derivatives such as B.
- N-protected D-proline derivatives such as N-benzyloxycarbonyl-D-proline (N-Z-D-proline) are important intermediates for the production of pharmaceuticals (J. Org. Chem., 1994, 59, 7496-7498). So far, only a few enzymes are known which, for. B. Accept N-Z-L-proline as a substrate and hydrolyze it to L-proline.
- N-acyl-L-proline acylase which, for. B. N-acetyl-L-proline is preferred as the substrate and is used to obtain L-proline.
- This N-acyl-L-proline acylase is made from microorganisms of the species Comamonas testosteroni or Alcaligenes denitrificans isolated. A disadvantage of these microorganisms is that they are incapable of using NZL-proline as the sole nitrogen source and not hydrolyzing NZL-proline as a substrate.
- WO 95/10604 describes a microbiological process for producing L-
- Pipecolic acid known from microorganisms of the species Alcaligenes denitrificans. These microorganisms also have the disadvantage that they do not use the corresponding N-acyl substrate (N-acetyl- (DL) -pipecolic acid) as the only nitrogen source.
- the object of the present invention is to isolate microorganisms which can be used both for a simple and technically viable process for the preparation of N-protected cyclic or aliphatic D-amino acid derivatives and for a simple process for the preparation of cyclic or aliphatic L-amino acid derivatives. The corresponding products should be isolated in good enantiomeric purity.
- microorganisms according to claim 1 can be isolated from soil samples, sludge or waste water with the aid of customary microbiological techniques. According to the invention, these microorganisms are isolated in such a way that they are in a medium containing an N-protected proline derivative of the general formula
- the C 1-4 alkoxy may be applied methoxy, fluorenylmethoxy, ethoxy, propoxy, i-propoxy, butoxy, t-butoxy or i-butoxy.
- aryl a phenyl or benzyl group is substituted or unsubstituted, such as. B. 4-methoxybenzyl or 4-methoxyphenyl used.
- Aryloxy is hereinafter defined as a phenyloxy or benzyloxy group, substituted or unsubstituted.
- Examples of an aryloxy group are benzyloxy, 4-methoxybenzyloxy or 4-nitrobenzyloxy.
- the microorganisms can use, for example, sugar, sugar alcohols, or carboxylic acids as a growth substrate as a suitable carbon source.
- Hexoses such as glucose, fructose or pentoses can be used as sugar.
- carboxylic acids di- or
- Tricarboxylic acids or. the salts of which are used such as citrate or malate.
- Sugar alcohol can be used, for example, glycerol.
- microorganisms for example ammonium, nitrate,
- the selection and cultivation medium which can be used are those customary in the art, for example that described in Table 1. Preferably that described in Table 1 is used.
- the effective enzymes of the microorganisms are expediently induced during the cultivation and selection.
- An N-protected proline derivative of the general formula I or the L-isomer thereof can be used as the enzyme inducer.
- Cultivation and selection are usually carried out at a temperature of 10 to 40 ° C., preferably 20 to 35 ° C. and at a pH between pH 4 and pH 10, preferably between pH 5 and pH 9.
- Preferred microorganisms are NZL-proline utilizing the genus Arthrobacter (first gram-positive microorganism with proline acylase activity), Agrobacterium / Rhizobium, Bacillus, Pseudomonas or Alcaligenes.
- microorganisms of the species Arthrobacter sp are NZL-proline utilizing the genus Arthrobacter (first gram-positive microorganism with proline acylase activity), Agrobacterium / Rhizobium, Bacillus, Pseudomonas or Alcaligenes.
- microorganisms of the species Arthrobacter sp are NZL-proline utilizing the genus Arthrobacter (first gram-positive microorganism with proline acylase activity),
- HSZ5 with the designation DSM 10328 Agrobacterium / Rhizobium HSZ30, Bacillus simplex K2, Pseudomonas putida K32, Alcaligenes piechaudii K4 or Alcaligenes xylosoxydans ssp denitrificans HSZ 17 with the designation DSM 10329, and their functionally equivalent variants and mutants.
- the microorganisms DSM 10329 and DSM 10328 were deposited on January 6, 1995 at the German Collection of Microorganisms and Cell Culture GmbH, Mascheroderweg 1b, D-38124 Braunschweig, in accordance with the Budapest Treaty.
- “Functionally equivalent variants and mutants” are understood to mean microorganisms which have essentially the same properties and functions as the original microorganisms. Such variants and mutants can happen accidentally, e.g. B. are formed by UV radiation.
- Taxonomic description of Alcaligenes xylosoxydans ssp. denitrificans HSZ17 (DSM 10329)
- Peptidoglycan type A3 ⁇ , L-Lys-L-Ser-L-Thr-L-Ala 16S rDNA sequence similarity: Sequencing of the area with the greatest variability gave 98.2% as highest values with Arthrobacter pascens,
- the partial sequencing of the 16SrDNA showed a similarity of 100% to Bacillus simplex.
- the profile of cellular fatty acids is typical of the Alcahgenes genus.
- the profile of cellular fatty acids is typical of Pseudomonas putida.
- Pseudomonas putida can be assigned.
- the enzymes according to the invention, the N-acyl-L-proline acylases can, for. B. are obtained by expertly disrupting the microorganism cells described, preferably the enzymes are obtained from Arthrobacter sp HSZ5 (DSM 10329). For example, the ultrasound, French press or lysozyme method can be used for this.
- the enzymes are characterized by the following properties: N-acyl-L-proline acylase characterized by the following properties: a) substrate specificity:
- a together with -N- and -CH represent an optionally substituted 4-, 5- or 6-membered saturated heterocyclic ring and R - (CH 2 ) 2 -COOH, each optionally substituted alkyl, alkoxy, aryl or aryloxy, is carried out in this way that in the racemic N-protected cyclic amino acid derivative of the general formula
- N-protected cyclic L-amino acid derivative by means of the microorganisms already described or by means of their cell-free enzymes converted into the cyclic L-amino acid derivative (formula III) and optionally isolated , where the N-protected D-amino acid derivative (formula II) is obtained in addition to the L-amino acid derivative, which is optionally isolated.
- the inventive method for the preparation of N-protected aliphatic D-amino acid derivatives of the general formula V and / or of an aliphatic L-amino acid derivative of the general formula VI in which R 3 has the meaning given, R 4 is hydrogen, an optionally substituted unbranched alkyl group or an ⁇ -hydroxyalkyl group and R 5 is hydrogen or an optionally substituted unbranched alkyl group is carried out analogously to the corresponding cyclic amino acid derivatives.
- the starting material for this is a racemic N-protected aliphatic amino acid derivative of the general formula
- R 3 , R 4 and R 5 have the meaning given.
- optionally substituted saturated 5-membered heterocyclic rings are proline, pyrazolidine, imidazolidine, oxazolidine, isoxazolidine, thiazolidine, triazolidine.
- 5-oxoproline pyroglutamate
- 5-oxoproline pyroglutamate
- optionally substituted saturated 6-membered heterocyclic rings are piperazine, pipecolin, morpholine, quinolinane, isoquinolinane, quinoxaline.
- Azetidine can be used as the 4-membered, optionally substituted, saturated heterocyclic ring.
- Alkyl is referred to as a C 1 -, substituted or unsubstituted 18 alkyl group, defined examples of a C 1 - 18 alkyl group are methyl, chloromethyl, hydroxymethyl, ethyl, propyl, butyl, i-butyl, i-propyl, stearyl.
- Unbranched alkyl is defined below as methyl, ethyl, propyl or butyl. Hydroxymethyl, hydroxyethyl, hydroxypropyl or hydroxybutyl is defined below as the ⁇ -hydroxyalkyl group.
- Alkoxy is referred to as a C 1 -, substituted or unsubstituted alkoxy group 18, defined examples of a C 1 - 18 alkoxy group are methoxy, fluorenylmethoxy, ethoxy, propoxy, butoxy, t-butoxy, i-butoxy, Stearoxy.
- racemic N-protected cyclic or aliphatic amino acids or their derivatives is known in principle.
- the corresponding L-amino acid is racemized in a known manner according to EP-A 0 057 092, which in turn is then known in a known manner with the corresponding N-protecting group according to Grassmann & Wünsch (Chem. Ber. 91 (1958), 462 - 465) is implemented.
- Racemization and the introduction of the protective group in an aqueous medium without isolation of the racemic amino acid is carried out.
- biotransformation is possible with all microorganisms that use an N-protected proline derivative in the form of the racemate or its optically active isomers as the only nitrogen source, as the only carbon source or as the only carbon and nitrogen source.
- N-acyl-L-proline acylases isolated from the microorganisms.
- the microorganisms of the genus Arthrobacter, Alcaligenes, Agrobacterium / Rhizobium, Bacillus, described above are particularly suitable for the process.
- Pseudomonas in particular of the species Agrobacterium / Rhizobium HSZ30, Bacillus simplex K2, Arthrobacter sp. HSZ5, Alcaligenes xylosoxydans ssp. denitrificans HSZ17 (DSM 10329), Pseudomonas putida K32 or Alcaligenes piechaudii K4, or their functionally equivalent variants and mutants.
- the biotransformation can be carried out with resting cells (non-growing cells which no longer require a carbon and energy source) or with growing cells.
- the biotransformation is preferably carried out with resting cells.
- media customary in the art can be used, such as, for example, low-molecular phosphate buffers, Tris buffers, or the medium described in Table 1.
- the biotransformation is preferably carried out in the medium according to Table 1.
- the biotransformation is expediently carried out with a single or continuous addition of an N-protected amino acid derivative in such a way that the concentration does not exceed 50% by weight, preferably 20% by weight.
- the pH of the medium can be in a range from 3 to 12, preferably from 5 to 9.
- the biotransformation is expediently carried out at a temperature of from 10 to 70 ° C., preferably from 20 to 50 ° C.
- an N-protected cyclic or aliphatic amino acid derivative is completely converted into a cyclic or aliphatic L-amino acid derivative.
- An N-protected D-amino acid derivative falls in good yield and
- N-protected D-amino acid derivative and / or L-amino acid derivative obtained in this way can be prepared by conventional workup methods such as. B. isolated by extraction.
- N-Z-L-proline 5 g / l was added as the C source.
- N-Z-L-proline 5 g / l was added to this basic medium as the only N source.
- Different batches were then inoculated with soil samples from different locations and incubated (30 ° C, 120 rpm) until clearly visible growth could be seen. An aliquot of this culture was then inoculated into an equal volume of fresh medium and incubated again until it became cloudy. This process was repeated three times.
- the enriched microorganisms were then separated and cleaned on a solid medium (same composition as liquid medium, only addition of 20 g / l agar agar). In this way, about 30 different bacterial isolates were obtained which were able to use NZL-proline as the only N -Source to recycle.
- the isolates obtained with the method described in Example 1 were propagated in the medium described there. All cultures with sufficient cell density (OD 650 2.0) were harvested by centrifugation. The sedimented cells were resuspended in 0.85% NaCl and washed.
- NZL-proline After resuspending in NaCl solution, the ability to hydrolize NZL-proline was tested with resting cells. A suitable amount of cells with NZL-proline (5 g / l) in buffer solution (50 mM Tris / Cl, pH 7.0) was used for this ) incubated (30 ° C) At different times, aliquots were removed and checked for the release of proline from NZ-proline by thin layer chromatography. Several isolates showed this hydrolytic activity, especially the two from the DSM as Arihrohacter sp. and Alcahgenes xylosoxydans ssp. denilnficans certain strains HSZ5 and HSZ17.
- Arthrobacter sp HSZ5 was grown with various C- (NZL-proline as N-source) or N-source (fructose as C-source). C-sources were added to 5 g / l, N-sources to 2 g / l. For induction If necessary, 1 g / l NZL-proline was added to the desired enzymatic activity. Only fructose, glucose, sucrose and mannitol from the tested C sources could be used. In all other cases, N-Z-L-proline was used as the C source. The enzymatic activity was only slightly dependent on the C source used. In contrast, all tested N sources could be used, but the enzymatic activity was, e.g. T. significant, reduced (Table 2):
- Table 2 Growth and enzymatic activity of Arthrobacter sp. HSZ5 when cultivated with different C- (A) resp. N- (B) sources
- Arthrobacter sp HSZ5 was grown in minimal medium (Example 1) with fructose (5 g / l) as the C source and L-glutamate (2 g / l) as the N source.
- NZL-proline was almost completely hydrolyzed, while NZD-proline remained unchanged in the solution.
- NZD proline was thus present in high optical purity (ee> 99%): Arthrobacter sp. HSZ5 was in a Chemap fermenter (working volume 2 1) in
- Minimal medium (see example 1) with glucose (30 g / l) and L-proline (7 g / l) as a C or N source at 30 ° C. to a cell density of OD 650 > 35 to induce the enzymatic activity , a small amount of NZ-DL-proline (5 g / l) was then added and incubated for some time. Finally, a further 145 g of NZ-DL-proline were continuously added over a period of 20 hours and then incubated for a further five hours. The cells were then separated by centrifugation.
- the fermentation broth was adjusted to a pH ⁇ 3 with the aid of hydrochloric acid and NZ-proline, which is almost water-insoluble under these conditions, was obtained by extraction with the aid of butyl acetate. Separation of the two phases gave an aqueous solution of L-proline and NZ-proline in organic solvent. The organic phase was concentrated in vacuo and the NZ-proline obtained was dissolved in ethyl acetate and crystallized out by adding hexane.
- Minimal medium (cf. Example 1) with glucose (20 g / l) and L-proline (7 g / l) as a C or N source at 30 ° C. to a cell density of OD650> 30.
- 1 12 g of a 50% (w / w) N-Z-DL-proline solution were then added and incubated for a further hour.
- the volume of the culture was then reduced to 4 l by draining off the amount not required.
- a further 709 g of the 50% (w / w) N-Z-DL-proline solution were then continuously added to this 4 l culture with induced cells over a period of 5.5 h and then incubated for a further 17.5 h.
- the pH was maintained at 7.5-8.5 during the biotransformation.
- Example 1 with glucose (13 g / l) and L-proline (7 g / l) as C or N source at 30 ° C. to the desired cell density (OD650 approx. 25).
- OD650 approx. 25
- Figure 2 Activity of the N-acyl-L-proline acylase from Arthrobacter sp. HSZ5 depending on the pH value.
- Figure 3 Activity of N-acyl-L-proline acylase from Arthrobacter sp. HSZ5 depending on the temperature.
- NZL-proline L-proline, NZD-proline, benzyl alcohol
- Figure 4 Activity of the N-acyl-L-proline acylase from Arthrobacter sp. HSZ5 depending on the concentration of the products.
- Agrobacterium / Rhizobium HSZ30, Bacillus simplex K2, Alcaligenes piechaudii K4 and Pseudomonas putida K32 were grown in the medium described in Table 1 with fnictose (5 g / l) as the C source (30 ° C, 120 rpm) as the only N source (5 g / l) various N-protected amino acids were added. When a cell density of OD 650 > 0.5 was reached, the approach was assessed as positive.
- HSZ5 Alcaligenes xylosoxidans ssp. denitrificans HSZ 17, Agrobacterium / Rhizobium HSZ30, Bacillus simplex K2, Alcaligenes piechaudii K4 and Pseudomonas putida K32 were in the medium described in Table 1 with fructose (5 g / l) and NZL-proline (5 g / l) as a C or N source (30 ° C, 120 rpm). After reaching the desired cell density, the cells were harvested by centrifugation and washed in saline (0.9%). After all strains had been tested for the desired enzymatic activity, the cells were then resuspended in 100 mM potassium phosphate buffer (pH 7.0) after the addition of various N-protected amino acids
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Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL97328795A PL328795A1 (en) | 1996-03-13 | 1997-03-12 | Method of obtaining n-rotected derivatives of d-proline |
EP97914232A EP0896617A1 (de) | 1996-03-13 | 1997-03-12 | Verfahren zur herstellung von n-geschützten d-prolinderivaten |
JP9532290A JP2000506728A (ja) | 1996-03-13 | 1997-03-12 | N―保護されたd―プロリン誘導体の製造方法 |
SK1171-98A SK282099B6 (sk) | 1996-03-13 | 1997-03-12 | Mikroorganizmy a bezbunkové enzýmy zúžitkujúce n-chránený derivát prolínu a spôsob jeho výroby |
AU21557/97A AU2155797A (en) | 1996-03-13 | 1997-03-12 | Process for producing n-protected d-proline derivatives |
NO984206A NO984206D0 (no) | 1996-03-13 | 1998-09-11 | Fremgangsmåte for fremstilling av N-beskyttende D-prolinderivater |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CH656/96 | 1996-03-13 | ||
CH65696 | 1996-03-13 |
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WO1997033987A1 true WO1997033987A1 (de) | 1997-09-18 |
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PCT/EP1997/001262 WO1997033987A1 (de) | 1996-03-13 | 1997-03-12 | Verfahren zur herstellung von n-geschützten d-prolinderivaten |
Country Status (12)
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US (1) | US20020037559A1 (de) |
EP (1) | EP0896617A1 (de) |
JP (1) | JP2000506728A (de) |
KR (1) | KR19990087341A (de) |
CN (1) | CN1213400A (de) |
AU (1) | AU2155797A (de) |
CA (1) | CA2245543A1 (de) |
CZ (1) | CZ281198A3 (de) |
NO (1) | NO984206D0 (de) |
PL (1) | PL328795A1 (de) |
SK (1) | SK282099B6 (de) |
WO (1) | WO1997033987A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998027222A1 (de) * | 1996-12-16 | 1998-06-25 | Lonza Ag | Verfahren zur herstellung von d-prolinderivaten |
WO1999007873A1 (de) * | 1997-08-11 | 1999-02-18 | Lonza Ag | VERFAHREN ZUR HERSTELLUNG ENANTIOMERENREINER CYCLISCHER α-AMINOSÄUREN BZW. DEREN N-GESCHÜTZTER DERIVATE MITTELS EINER D-SPEZIFISCHEN AMINOACYLASE |
WO2005054186A3 (en) * | 2003-12-04 | 2007-04-19 | Pfizer | Methods for the preparation of stereoisomerically enriched amines |
US7378269B2 (en) * | 2000-10-11 | 2008-05-27 | Degussa Ag | Process for the production of amino acids |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6064998B2 (ja) | 2012-03-30 | 2017-01-25 | 味の素株式会社 | 化粧料組成物 |
CN104592083A (zh) * | 2015-01-06 | 2015-05-06 | 宁波海硕生物科技有限公司 | 一种制备n-乙酰-dl-硫代脯氨酸的方法 |
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-
1997
- 1997-03-12 AU AU21557/97A patent/AU2155797A/en not_active Abandoned
- 1997-03-12 SK SK1171-98A patent/SK282099B6/sk unknown
- 1997-03-12 CA CA002245543A patent/CA2245543A1/en not_active Abandoned
- 1997-03-12 CN CN97192958A patent/CN1213400A/zh active Pending
- 1997-03-12 US US09/125,723 patent/US20020037559A1/en not_active Abandoned
- 1997-03-12 WO PCT/EP1997/001262 patent/WO1997033987A1/de not_active Application Discontinuation
- 1997-03-12 JP JP9532290A patent/JP2000506728A/ja active Pending
- 1997-03-12 CZ CZ982811A patent/CZ281198A3/cs unknown
- 1997-03-12 PL PL97328795A patent/PL328795A1/xx unknown
- 1997-03-12 EP EP97914232A patent/EP0896617A1/de not_active Withdrawn
- 1997-03-12 KR KR1019980706750A patent/KR19990087341A/ko not_active Withdrawn
-
1998
- 1998-09-11 NO NO984206A patent/NO984206D0/no unknown
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EP0416282A1 (de) * | 1989-09-06 | 1991-03-13 | Degussa Aktiengesellschaft | Mikrobiologisch hergestellte N-Acyl-L-prolin-Acylase, Verfahren zu ihrer Gewinnung und ihre Verwendung |
US5219741A (en) * | 1989-09-06 | 1993-06-15 | Degussa Ag | Method of making L-proline using an N-acyl-L-protine acylase |
US5348882A (en) * | 1991-05-24 | 1994-09-20 | Degussa Aktiengesellschaft | Method of producing enantiomerically pure, open-chain N-alkyl-L or D-amino acids using comamonas testosteroni |
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Title |
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KIKUCHI ET AL.: "A new enzyme, proline acylase (N-acyl-L-proline amidohydrolase) from Pseudomonas species", BIOCHIMICA ET BIOPHYSICA ACTA, vol. 744, no. 2, 28 April 1983 (1983-04-28), pages 180 - 188, XP000674773 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998027222A1 (de) * | 1996-12-16 | 1998-06-25 | Lonza Ag | Verfahren zur herstellung von d-prolinderivaten |
WO1999007873A1 (de) * | 1997-08-11 | 1999-02-18 | Lonza Ag | VERFAHREN ZUR HERSTELLUNG ENANTIOMERENREINER CYCLISCHER α-AMINOSÄUREN BZW. DEREN N-GESCHÜTZTER DERIVATE MITTELS EINER D-SPEZIFISCHEN AMINOACYLASE |
US7378269B2 (en) * | 2000-10-11 | 2008-05-27 | Degussa Ag | Process for the production of amino acids |
WO2005054186A3 (en) * | 2003-12-04 | 2007-04-19 | Pfizer | Methods for the preparation of stereoisomerically enriched amines |
Also Published As
Publication number | Publication date |
---|---|
PL328795A1 (en) | 1999-02-15 |
CA2245543A1 (en) | 1997-09-18 |
US20020037559A1 (en) | 2002-03-28 |
CN1213400A (zh) | 1999-04-07 |
SK117198A3 (en) | 1999-03-12 |
SK282099B6 (sk) | 2001-11-06 |
JP2000506728A (ja) | 2000-06-06 |
NO984206L (no) | 1998-09-11 |
NO984206D0 (no) | 1998-09-11 |
EP0896617A1 (de) | 1999-02-17 |
KR19990087341A (ko) | 1999-12-27 |
AU2155797A (en) | 1997-10-01 |
CZ281198A3 (cs) | 1998-12-16 |
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