申请人:Takeda Chemical Industries, Ltd.
公开号:EP0093376A2
公开(公告)日:1983-11-09
A 1-sulfo-2-oxoazetidine derivative of the formula
wherein R8 is -COQ° (Q° is an amino group which may optionally be protected or substituted), -COQ5 (Q5 is a hydroxyl group which may optionally be protected), -(CH2)na- R4a (na is an integer of 1 to 3: R4a is a hydrogen atom or a carbamoylamino, N-sulfocarbamoylamino, carbamoyl, carbamoyloxy, N-sulfocarbamoyloxy, haloalkylcarbonylcarbamoyloxy, alkylsulfonyloxy, pyridinio, alkoxy, alkylsulfinyl, alkylsulfonyl, halogenoalkylcarbonyloxy, hydroxyl, alkoxycarbonyl, acyloxy, 1-alkoxyiminoalkyl, alkylcarbonyl or acylamino group) or a nitrogen-containing heterocyclic group; R' is an amino group which may optionally be acylated or protected; and X is a hydrogen atom or a methoxy group, or a salt or ester thereof, and methods of producing said compound (Ia) which may be shown as follows
wherein the symbols have the same meanings as respectively defined above, and intermediates for preparing the compound (Ia) and methods of producing them. The compound (Ia) has improved antimicrobial and β-lactamase- inhibitory activities and is of value as drugs for human beings and domesticated animals.
式中的 1-磺基-2-氧氮杂环丁烷衍生物
其中 R8 为-COQ°(Q°为氨基,可任选被保护或取代)、-COQ5(Q5 为羟基,可任选被保护)、-(CH2)na- R4a(na 为 1 至 3 的整数:R4a 是氢原子或氨基甲酰氨基、N-硫代氨基甲酰氨基、氨基甲酰基、氨基甲酰氧基、N-硫代氨基甲酰氧基、卤代烷基羰基氨基甲酰氧基、烷基磺酰氧基、吡啶基、烷氧基、烷基亚磺酰基、烷基磺酰基、卤代烷基羰基氧基、羟基、烷氧基羰基、酰氧基、1-烷氧基亚氨基烷基、烷基羰基或酰氨基)或含氮杂环基团;R'是可选择酰化或保护的氨基;X是氢原子或甲氧基,或其盐或酯,以及生产所述化合物(Ia)的方法,可如下所示
其中符号的含义分别与上述定义相同,以及制备化合物(Ia)的中间体及其生产方法。化合物(Ia)具有更好的抗菌和抑制β-内酰胺酶的活性,具有作为人类和驯养动物药物的价值。