从线性前体双(二异丙基氨基){2-[(吡啶-2-基)氨基一锅两步合成 5-苯基-3-(吡啶-2-基)-1,3,2-氧氮杂磷脂]-1-苯基乙氧基}膦是通过立体选择性分子内环化实现的。应用纯对映异构体 {1-苯基-2-[(吡啶-2-基)氨基]乙醇}可以通过结晶进行部分非对映纯化。对于所有四种非对映异构体,使用 X 射线晶体学和相关 31 P NMR 数据确定 P 中心的绝对构型。然后将立体化学纯的 5a 用于核苷磷酸化反应,通过保留磷中心的构型而部分丧失立体纯度。
Brenelli, Eugenia C S; Carvalho, Marcia de; Okubo, Marina T, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1992, vol. 31, # 12, p. 821 - 823
Brenelli Eugenia C. S., de Carvalho Marcia, Okubo Marina T., Marques Marg+, Indian J. Chem. B, 31 (1992) N 12, S 821-823
作者:Brenelli Eugenia C. S., de Carvalho Marcia, Okubo Marina T., Marques Marg+
DOI:——
日期:——
OPTICAL ENANTIOMERS OF PHENYRAMIDOL AND PROCESS FOR CHIRAL SYNTHESIS
申请人:Datla Anupama
公开号:US20090182016A1
公开(公告)日:2009-07-16
The present invention discloses optically pure (R) and (S) Phenyramidol enantiomers and their pharmaceutically acceptable salts, a process for synthesising such enantiomers by means of a styrene oxide based asymmetric synthesis, and also a clinical evaluation of (R) and (S) enantiomers of Phenyramidol, their salts and compositions thereof for enhanced/newer therapeutic benefits.
US8389551B2
申请人:——
公开号:US8389551B2
公开(公告)日:2013-03-05
Brenelli, Eugenia C S; Carvalho, Marcia de; Okubo, Marina T, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1992, vol. 31, # 12, p. 821 - 823
作者:Brenelli, Eugenia C S、Carvalho, Marcia de、Okubo, Marina T、Marques, Margarete、Moran, Paulo J S、et al.