申请人:Tewari Neera
公开号:US20110224426A1
公开(公告)日:2011-09-15
The present invention relates to a process for the preparation of carbapenem compound of Formula (I), wherein P
1
is hydrogen or a carboxyl protecting group, P
3
is hydrogen or a hydroxyl protecting group, R
1
is C
1-3
alkyl, and A is selected from a group consisting of a) Formula (II), b) Formula (III), c) Formula (IV), d) Formula (V), e) Formula (VI), f) Formula (VII), wherein P
2
is hydrogen or an amino protecting group, R
2
and R
3
may be same or different and are hydrogen, C
1-5
alkyl, optionally substituted aryl, or optionally substituted heteroaryl, and X
1
is O or S, or its stereoisomers, or salts thereof.
本发明涉及一种制备式(I)碳青霉烯化合物的工艺,其中P1为氢或羧酸保护基团,P3为氢或羟基保护基团,R1为C1-3烷基,A选自以下组:a)式(II),b)式(III),c)式(IV),d)式(V),e)式(VI),f)式(VII),其中P2为氢或氨基保护基团,R2和R3相同或不同,为氢,C1-5烷基,可选地取代的芳基或可选地取代的杂芳基,X1为O或S,或其立体异构体,或其盐。