METHOD FOR BIOCATALYTIC SYNTHESIS OF SUBSTITUTED OR UNSUBSTITUTED PHENYLACETIC ACIDS AND KETONES HAVING ENZYMES OF MICROBIAL STYRENE DEGRADATION
申请人:TECHNISCHE UNIVERSITÄT BERGAKADEMIE FREIBERG
公开号:US20160186217A1
公开(公告)日:2016-06-30
The present invention relates to a method for the biocatalytic synthesis of substituted and unsubstituted phenylacetic acids and ketones from styrenes and bicyclic aromatic hydrocarbons using enzymes of microbial styrene degradation in a whole-cell sensor, as well as a kit for the biocatalytic synthesis of substituted and unsubstituted phenylacetic acids and ketones containing a whole-cell catalyst and the use of the method, wherein the method comprises the following steps:
a) providing at least one type of whole-cell catalyst, containing genes which code for the enzymes of styrene degradation and are under the functional control of a regulatable promoter, in an aqueous component,
b) activating the whole-cell catalyst with an inducer and/or an activator, leading to expression of the gene,
c) bringing the activated whole-cell catalyst into contact with a substrate,
d) isolating the reaction products produced, which are advantageously not further metabolized by the whole-cell cat and advantageously accumulate in the aqueous component.
Carboxylic acid esters of pharmaceutical compounds
申请人:Ascher Gerd
公开号:US20060122164A1
公开(公告)日:2006-06-08
A pharmaceutically active compound having a carboxylic acid group —COOH as a part of its chemical structure which —COOH group is in the form of a carboxylic acid ester.
一种具有羧酸基—COOH作为其化学结构的药物活性化合物,其中—COOH基团以羧酸酯的形式存在。
PENICILLIN CONVERSION
申请人:——
公开号:US20010006795A1
公开(公告)日:2001-07-05
The present invention provides a biological system for expanding the dethiazolidine ring of penicillins into the dehydrothiazine ring of cephalosporins or cephalosporin precursors. In particular, the invention defines reaction conditions under which expandase enzyme can convert penicillin substrates other than penicillin N into cephalosporins. The invention therefore provides a relatively inexpensive, uncomplicated, and environmentally friendly biological system for cephalosporin production from penicillins, which system can replace the synthetic chemical approaches currently utilized. In particular, the invention provides a system for producing DOAG and/or DAG, which can be enzymatically converted into 7-ADCA and 7-ADAC, which, in turn, can be enzymatically or chemically converted into valuable cephalosporins of commerce.
本发明提供了一种将青霉素的脱噻唑烷环扩展为头孢菌素或头孢菌素前体的脱氢噻嗪环的生物系统。特别是,本发明定义了扩展酶可将青霉素底物(青霉素 N 除外)转化为头孢菌素的反应条件。因此,本发明为利用青霉素生产头孢菌素提供了一种相对廉价、不复杂且环保的生物系统,该系统可取代目前使用的化学合成方法。特别是,本发明提供了一种生产 DOAG 和/或 DAG 的系统,这些 DOAG 和/或 DAG 可通过酶法转化为 7-ADCA 和 7-ADAC,而 7-ADCA 和 7-ADAC 又可通过酶法或化学法转化为有价值的商业头孢菌素。