46.
    发明专利
    未知

    公开(公告)号:DE59909610D1

    公开(公告)日:2004-07-01

    申请号:DE59909610

    申请日:1999-08-13

    Applicant: BASF AG

    Abstract: The present invention relates to a process for resolving racemates of alkoxy-substituted primary amines by reacting with an ester in the presence of a lipase and subsequently separating the optically active amide which is formed from the unreacted optically active amine. This is followed where appropriate by hydrolysis of the optically active amide, separation of the optically active amine produced thereby from the acid from which the ester is derived, racemization and recycling of the unwanted enantiomer of the amine, and esterification and recycling of the acid.

    New butynol I esterase, for stereospecific hydrolysis or transesterification of esters, to produce optically active reaction products

    公开(公告)号:DE10131544A1

    公开(公告)日:2003-01-16

    申请号:DE10131544

    申请日:2001-06-29

    Applicant: BASF AG

    Abstract: A protein (I) with butynol I esterase (BIE) activity comprising at least one of 4 partial sequence polypeptides (S1-4) and their functional equivalents, is new. A protein (I) with butynol I esterase (BIE) activity comprises at least one of 4 partial sequence polypeptides (S1-4) and their functional equivalents. Independent claims are also included for the following: (1) polynucleotides (II) that encode (I), and complementary polynucleotides and sequences that hybridize to them; (2) an expression cassette (EC) comprising at least one (II), operably linked to regulators; (3) a recombinant vector for transforming eukaryotic or prokaryotic hosts, containing (II) or EC; (4) preparation of (I) by culturing organisms that produce (I), either endogenously or after transformation; (5) (I) produced by the method in (4); Pseudomonas glumae Lu2023 (DSM 13176), or its variants or mutants; (6) microorganisms containing the vector of (4); (7) method for enantioselective ester hydrolysis or transesterification using (I); and (8) optically active alcohols, carboxylic acids or esters prepared using (I). Phe-Ile-Glu-Thr-Leu-Gly-Leu-Glu-Arg-Pro-Val-Leu-Val-Gly-His-Ser-Leu-Gl y-Gly-Ala-Ile-Ala-Leu-Ala-Val-Gly-Leu-Asp-Tyr-Pro-Glu-Arg (S1) Ile-Ala-Leu-Ile-Ala-Pro-Leu-Thr-His-Thr-Glu-Thr-Glu-Pro (S2) Gly-Gly-Gly-Met-Met-Gly-Leu-Arg-Pro-Glu-Ala-Phe-Tyr-Ala-Ala-Ser-Ser-As p-Leu-Val (S3) Ala-Ile-Asp-Ala-Ile-Phe-Ala-Pro-Glu-Pro-Val (S4)

    50.
    发明专利
    未知

    公开(公告)号:AT217024T

    公开(公告)日:2002-05-15

    申请号:AT96900601

    申请日:1996-01-20

    Applicant: BASF AG

    Abstract: A process for preparing optically active primary and secondary heteroatom-substituted amines from the corresponding racemates, which comprisesa) enantioselective acylation of a racemic heteroatom-substituted amine with an ester whose acid component carries a fluorine, nitrogen, phosphorus, oxygen or sulfur atom in the vicinity of the carbonyl carbon, in the presence of a hydrolase,b) separation of the mixture of optically active heteroatom-substituted amine and optically active acylated heteroatom-substituted amine to obtain one enantiomer of the heteroatom-substituted amine,c) if required isolation of the other enantiomer of the heteroatom-substituted amine from the acylated heteroatom-substituted amine by amide cleavage.

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