申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0095029A1
公开(公告)日:1983-11-30
Starting compounds of the formula
wherein R is a group of the formula: --R3a
[in which is hydroxy (C1-C6) alkylene, amino (C1-C6) alkylene, protected amino (C1-C6) alkylene, (C2-C6)alkenylene, (C,-C6) alkylene having an oxo group;
or hydroxyimino (C1-C6) alkylene wherein the hydrogen atom of the hydroxyimino group may be replaced with a (C1-C6) aliphatic hydrocarbon group; and
R38 is carboxy or an esterified carboxy group] or
a group of the formula:
[in which A2 is (C1-C6) alkylene which may have an oxo group; and
R3b is carboxy, esterified carboxy, an aliphatic or aromatic group] and
R10 is hydrogen or a mercapto-protective group, and a salt thereof
and processes for their preparation. The compounds are useful for the preparation of cephem compounds.
式中的起始化合物
其中 R 是式中的基团:--R3a
[其中为羟基(C1-C6)亚烷基、氨基(C1-C6)亚烷基、受保护氨基(C1-C6)亚烷基、(C2-C6)烯基、具有氧代基团的(C,-C6)亚烷基;
或羟基亚氨基 (C1-C6) 亚烷基,其中羟基亚氨基基团的氢原子可被 (C1-C6) 脂肪族烃基团取代;以及
R38 是羧基或酯化羧基]或
式中的基团:
[其中 A2 是(C1-C6)亚烷基,可带有一个氧代基团;以及
R3b 是羧基、酯化羧基、脂肪族或芳香族基团]和
R10 是氢或巯基保护基团,以及它们的盐
及其制备工艺。这些化合物可用于制备 cephem 化合物。