An (S)-1-phenyl-2-substituted propane derivative shown by the following formula (I)
wherein R1 and R2 represent a lower alkyl group, etc., or R1 and R2 may form together an alkylene group, etc.; R3, R4 and R5 represent a hydrogen atom, etc.; and X represents a hydroxyl group which may be protected with a protective group, or a halogen atom etc., can readily be produced (i) by permitting a microorganism belonging to the genus Torulaspora, the genus Candida, the genus Pichia or the like to act on a phenylacetone derivative and asymmetrically reducing the compound, or (ii) by sterically inverting an (R)-enantiomer. (R,R)-1-phenyl-2-[(2-phenyl-1-methylethyl)amino]ethanol derivative having a high optical purity can easily be obtained from the compound of the formula (I). The ethanol derivative is useful as an anti-obesity agent and the like.
以下是翻译结果:
以下公式(I)所示,其中R1和R2代表低碳基等,或R1和R2可能一起形成亚烷基等;R3、R4和R5代表氢原子等;X代表一个羟基,它可以用保护基保护,或者是卤原子等。可以通过以下方法轻松地制备出(S)-1-苯基-2-取代
丙烷衍
生物:(i)让属于酵母菌属Torulaspora、Candida、Pichia等的微
生物作用于
苯乙酮衍
生物并不对称还原化合物,或者(ii)通过立体反演(R)-对映体。从公式(I)的化合物可以轻松地获得具有高光学纯度的(R,R)-1-苯基-2-[(2-苯基-1-甲基乙基)
氨基]
乙醇衍
生物。该
乙醇衍
生物可用作抗肥胖剂等。