申请人:Sankyo Company, Limited
公开号:US04377591A1
公开(公告)日:1983-03-22
7-Oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid derivatives of formula (I): ##STR1## (in which:) R.sup.1 represents a hydrogen atom or an optionally substituted alkyl group; X represents an oxy group, a thio group, a sulphinyl group or a sulphonyl group; A represents a bivalent for trivalent saturated aliphatic hydrocarbon group; p is 1 (when A is bivalent) or 2 (when A is trivalent); R.sup.2 represents an azido, nitro or cyano group or one of the groups of formula ##STR2## m and n are the same or different and each is 0 or 1; R represents an amidino group or a group of formula R.sup.4, --N(R.sup.4).sub.2 or --YR.sup.4, B represents a group of formula ##STR3## D represents a group of formula ##STR4## (provided that, where m and n are both 1, the groups represented by B and D must be different); R.sup.4 represents a hydrogen atom or an alkyl group and, where there are 2 or more groups represented by R.sup.4, they may be the same or different, and Y represents an oxygen atom or a sulphur atom; and R.sup.3 represents a carboxy group or a protected carboxy group) and pharmaceutically acceptable salts thereof are valuable antibiotics and may be prepared by a process which includes heating a corresponding phosphorus-ylide compound.
化合物式(I)的7-氧代-1-氮杂双环[3.2.0]庚-2-烯-2-羧酸衍生物:##STR1##(其中:)R.sup.1代表氢原子或可选取代的烷基;X代表氧基,硫基,亚磺酰基或磺酰基;A代表二价或三价饱和脂肪族碳氢基团;p为1(当A为二价)或2(当A为三价);R.sup.2代表叠氮基,硝基或氰基或式##STR2##中的一种;m和n相同或不同,均为0或1;R代表酰胺基或式R.sup.4,--N(R.sup.4).sub.2或--YR.sup.4中的一种;B代表式##STR3##;D代表式##STR4##(但当m和n均为1时,B和D所代表的基团必须不同);R.sup.4代表氢原子或烷基,当有2个或更多的R.sup.4基团时,它们可以相同或不同,Y代表氧原子或硫原子;R.sup.3代表羧基或保护羧基),以及其药学上可接受的盐是有价值的抗生素,可以通过加热相应的膦-叶立德化合物制备。