申请人:Orchid Chemicals & Pharmaceuticals Limited
公开号:US07741478B2
公开(公告)日:2010-06-22
Compounds of general formula (II),
wherein R1 represents
R4 represents hydrogen or —CHO group, R5 represents hydrogen or trityl,
R2 represents hydrogen or methoxy group,
R3 represents —CH═CH2 or
and M represents a dialkyl or dicycloalkyl ethylenediamine group selected from N,N′-diisobutylethylenediamine, N,N′-dicyclohexylethylenediamine, and N,N′-dicyclopentylethylenediamine, are useful in a process to make cephalosporin antibiotics of formula (I)
wherein R represents hydrogen or pharmaceutically acceptable esters or alkali metals salts.
通式(II)的化合物,其中R1代表,R4代表氢或—CHO基团,R5代表氢或三苯基甲基,R2代表氢或甲氧基,R3代表—CH═CH2或,M代表选择自N,N′-二异丁基乙二胺,N,N′-二环己基乙二胺和N,N′-二环戊基乙二胺的二烷基或二环烷基乙二胺基团,在制备通式(I)的头孢菌素抗生素的过程中是有用的,其中R代表氢或药学上可接受的酯或碱金属盐。