Optically active compounds and intermediates there

专利名称：Optically active compounds and

intermediates thereof, and process formanufacturing same

发明人：Seiichi Takano,Kunio Ogasawara申请号：US07/658179申请日：19910220公开号：US05262552A公开日：19931116

摘要：An optically active (S)- or (R)-pentane compound of the general formula (11):##STR1## wherein R.sub.11, R.sub.12 and R.sub.13 independently represent a hydrogenatom or a lower alkyl group having 1 to 4 carbon atoms, R.sub.14 represents a hydroxy,protected hydroxy or oxo group, if R.sub.14 is an oxo group, the ring denoting benzene inthe above formula (11) is benzoquinone, R.sub.15 represents a hydrogen atom, hydroxyor acyloxy group, R.sub.16 represents a hydroxy or acyloxy group, and the chiral centralcarbon marked with a symbol * in said formula (11) alternatively has one of an R-configuration and an S-configuration, is disclosed. Further, intermediate products of thecompound of the formula (11) are also disclosed. Still further, a process for

manufacturing the above compounds is disclosed. The compound of the formula (11) iseasily synthesized from an easily available optically active starting material.

申请人：ASAHI DENKA KOGYO K.K.

代理机构：Sherman and Shalloway

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