Agent For Optical Resolution, Process For Producing Optically Active Substance and 1,5-Substituted Bicyclo [3.3.0] -2-Oxaoctane Compound
申请人:Nemoto Hisao
公开号:US20080287695A1
公开(公告)日:2008-11-20
An agent for optical resolution comprising a bicyclo[3.3.0]-2-oxaoctane compound represented by the formula [1], [2] or [3] a process for producing an optically active substance comprising obtaining a mixture of diastereomers by reaction of the agent with a mixture of optically active substances having active hydrogen atom, resolving the mixture of diastereomers into each diastereomer and obtaining an (R) optically active substance or an (S) optically active substance by decomposition of the diastereomer; and compounds represented by the above formulae in which R
11
represents fluorenylmethyl group, fluorenylidenemethyl group, bis(4-cyclohexylphenyl)methyl group, 4-(9-phenanthryl)phenyl group, 4-(1-pyrenyl)phenyl group, 4-(5-acenaphthenyl)phenyl group or 4-(9-anthryl)phenyl group, are disclosed. A useful optically active substance having a very high purity can be produced efficiently by using the agent of the present invention.
OPTICAL RESOLVER, PROCESS FOR PRODUCING OPTICALLY ACTIVE ISOMER, AND 1,5-SUBSTITUTED BICYCLO (3.3.0) -2-OXAOCTANE COMPOUND
申请人:ZEON CORPORATION
公开号:EP1719746A1
公开(公告)日:2006-11-08
An agent for optical resolution comprising a bicyclo [3.3.0] -2-oxaoctane compound represented by the formula [1], [2] or [3] ; a process for producing an optically active substance comprising obtaining a mixture of diastereomers by reaction of the agent with a mixture of optically active substances having active hydrogen atom, resolving the mixture of diastereomers into each diastereomer and obtaining an (R) optically active substance or an (S) optically active substance by decomposition of the diastereomer; and compounds represented by the above formulae in which R11 represents fluorenylmethyl group, fluorenylidenemethyl group, bis(4-cyclohexylphenyl)methyl group, 4-(9-phenanthryl)phenyl group, 4-(1-pyrenyl)phenyl group, 4-(5-acenaphthenyl)phenyl group or 4-(9-anthryl)phenyl group, are disclosed. A useful optically active substance having a very high purity can be produced efficiently by using the agent of the present invention.
TAKAHASHI, KIMIO;KISHI, MORIO, TETRAHEDRON, 44,(1988) N 15, C. 4737-4746
作者:TAKAHASHI, KIMIO、KISHI, MORIO
DOI:——
日期:——
An electron transfer model for thromboxane biosynthesis
作者:Kimio Takahashi、Morio Kishi
DOI:10.1039/c39870000722
日期:——
Conversion of prostaglandin endoperoxide model compound (1) into the thromboxane B ring system (6a) and (7a) was achieved with the aid of the ferrous ion.
借助于亚铁离子将前列腺素内过氧化物模型化合物(1)转化为血栓烷B环系统(6a)和(7a)。
Synthesis of a prostaglandin endoperoxide model compound and its reaction with electron transfer reagents
作者:Kimio Takahashi、Morio Kishi
DOI:10.1016/s0040-4020(01)86176-7
日期:1988.1
5-Exo-phenyl-2,3-dioxabicyclo[2.2.1]heptane (4c) was synthesized as a model compound of prostaglandinendoperoxide (PGH) to mimic the bioconversion of PGH into thromboxane (TX). The reaction of (4c) with various electron transfer reagents was investigated. With the aid of a catalytic amount of ferrous ion, (4c) was successfully converted into the thromboxane B (TXB) skeleton.