Process for preparing optically active oxazolidinone derivatives
申请人:Takasago International Corporation
公开号:EP1008590B1
公开(公告)日:2006-10-11
US6403804B1
申请人:——
公开号:US6403804B1
公开(公告)日:2002-06-11
Okada, Yoshio; Tsuda, Yuko; Yagyu, Masami, Chemical and pharmaceutical bulletin, 1980, vol. 28, # 7, p. 2254 - 2258
作者:Okada, Yoshio、Tsuda, Yuko、Yagyu, Masami
DOI:——
日期:——
Process for preparing optically active oxazolidinone derivative
申请人:Takasago International Corporation
公开号:US06403804B1
公开(公告)日:2002-06-11
Disclosed is a process for preparing an optically active oxazolidinone derivative comprising allowing hydrazine to react on an optically active ester having a hydroxyl group at the 3-position which is represented by formula (II):
wherein R1 represents a lower alkyl group having 1 to 4 carbon atoms, a phenyl group, a methoxymethyl group, a benzyloxymethyl group, a benzyloxycarbonylaminomethyl group which may have a substituent or substituents on the benzene ring thereof, an acylaminomethyl group having 3 to 10 carbon atoms, or an alkyloxycarbonylaminomethyl group having 3 to 6 carbon atoms; R2 and R3, which may be the same or different, each represent a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms, a phenyl group, an acetylaminomethyl group, a benzoylaminomethyl group, or a benzyl group; and * indicates an asymmetric carbon atom, and subjecting the resulting hydrazide to Curtius rearrangement.