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首页> 外文期刊>Bulletin of the Chemical Society of Japan >Stereochemical Control in Microbial Reduction. 30. Reduction of Alkyl 2-Oxo-4-phenylbutyrate as Precursors of Angiotensin Converting Enzyme (ACE) Inhibitors
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Stereochemical Control in Microbial Reduction. 30. Reduction of Alkyl 2-Oxo-4-phenylbutyrate as Precursors of Angiotensin Converting Enzyme (ACE) Inhibitors

机译:微生物减少中的立体化学控制。 30.还原2-氧代-4-苯基丁酸烷基酯作为血管紧张素转化酶(ACE)抑制剂的前体

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摘要

Alkyl 2-oxo-4-phenylbutyrates are reduced to the corresponding alkyl (R)-2-hydroxy-4-phenylbutyrates, versatile chiral building blocks in organic synthesis, in high chemical yield (80-90%) with excellent stereoselectivity (>90%ee). The reaction has been run in aqueous diethyl ether at 30 ℃ for 24 h under the catalysis of bakers' yeast (Saccharomyces cerevisiae) which was preincubated for 6 h in the presence of phenacyl chloride. The amount of water in the medium should be controlled strictly not to exceed 0.8 mL (g yeast)~(-1).
机译:将2-氧代-4-苯基丁酸烷基酯还原为相应的烷基(R)-2-羟基-4-苯基丁酸烷基酯,这是有机合成中通用的手性结构单元,化学产率高(80-90%),立体选择性优异(> 90) %ee)。该反应已在面包酵母(啤酒酵母)的催化下于30℃的乙醚水溶液中进行24小时,该酵母在苯甲酰氯存在下预孵育6小时。培养基中的水量应严格控制在不超过0.8 mL(克酵母)〜(-1)。

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