Optical Resolution Methods for Bicyclic Compounds Using Enzymes
申请人:Daiichi Sankyo Company, Limited
公开号:US20150038738A1
公开(公告)日:2015-02-05
An object of the present invention is to efficiently produce an optically active bicyclic compound. The optically active bicyclic compound is efficiently produced using an enzyme.
本发明的目的是高效地生产光学活性的双环化合物。利用酶可以高效地生产光学活性的双环化合物。
[EN] SEPARATION OF ENANTIOMERS OF 3-ETHYLBICYCLO[3.2.0]HEPT-3-EN-6-ONE<br/>[FR] SÉPARATION D'ÉNANTIOMÈRES DE 3-ÉTHYLBICYCLO[3.2.0]HEPT-3-EN-6-ONE
申请人:NOVASSAY SA
公开号:WO2016146299A1
公开(公告)日:2016-09-22
A process to isolate a compound of Formula (2a) or a salt or solvate thereof, comprising a) reacting a mixture of diastereoisomers of Formulae (2a, 2b) with a basic heterocyclic-aldehyde compound and an optically active amine in the presence of a base; and b) separating the compound of Formula (2a) from the product of step a) by acid extraction. The compound of Formula (2a) may be produced with an enantiomeric excess of 98%. Compounds of Formula (2a) are useful intermediates in a process to prepare a bicyclic γ - amino tetrazole derivative of Formula (I) which finds utility in treating neuropathic pain and disorders of the central nervous system.
METHOD FOR PRODUCING OPTICALLY ACTIVE BICYCLIC -AMINO ACID DERIVATIVE
申请人:Daiichi Sankyo Co., Ltd.
公开号:EP2871176A1
公开(公告)日:2015-05-13
An object of the present invention is to provide an optically active bicyclic γ-amino acid derivative in a high purity. The object can be attained by a mixture of compounds represented by the general formulas (I) and (I'), or a method for producing a compound represented by the general formula (VII) or a salt thereof via the compound (I):
wherein R1 and R2 each represent a C1-6 alkyl group or the like; and R3 represents a cyano group or the like,