申请人:Sankyo Company, Limited
公开号:US05104867A1
公开(公告)日:1992-04-14
Compounds of formula (I): ##STR1## in which R.sup.a is a group of formula (II): ##STR2## or a group of formula (III): ##STR3## (where one of R' is a bond to the remainder of the compound, one more of R' is R.sup.2 and the others of R' are all hydrogen), R.sup.1 is hydrogen or methyl, R.sup.2 is hydrogen, optionally substiuted alkyl, halogen, hydroxy, alkoxy, amino, alkanoylamino, alkanoyloxy, alkanoyl, carboxy, alkoxycarbonyl, cyano, --S(O).sub.j R.sup.9 (where j is 0, 1 or 2 and R.sup.9 is alkyl), or --CONR.sup.6 R.sup.7 (which is optionally substituted carbamoyl or heterocyclyl-carbonyl), R.sup.2a is hydrogen, alkyl or alkanoyl, --NR.sup.3 R.sup.4 is optionally substituted amino or heterocyclic, and --COOR.sup.5 is carboxy, --COO.sup.-, --COOM.sub.x (where M is a cation and x is the reciprocal of the valence of the cation M) or protected carboxy and, where --COOR.sup.5 is carboxy, --COOM.sub.x or protected carboxy, the compound of formula (I) also contains an anion; l, m and n are independently 0, 1, 2 or 3, provided that (m+n) is an integer from 2 to 6; p is 0, 1 or 2; Y is a single bond, oxygen, sulfur or R.sup.8 N<(wherein R.sup.8 is hydrogen, alkyl or alkanoyl) and pharmaceutically acceptable salts and esters thereof are potentially valuable antibiotics.
公式(I)的化合物:其中R.sup.a是公式(II)的一个基团:或者是公式(III)的一个基团:(其中R'之一是与化合物的其余部分相连的键,R'中的一个以上是R.sup.2,其余的R'都是氢),R.sup.1是氢或甲基,R.sup.2是氢,可选择地是取代的烷基,卤素,羟基,烷氧基,氨基,烷酰胺基,烷酰氧基,烷酰基,羧基,烷氧羰基,氰基,-S(O).sub.j R.sup.9(其中j为0、1或2,R.sup.9为烷基),或者-CONR.sup.6 R.sup.7(可选择地是取代的氨基甲酰基或杂环酰基),R.sup.2a是氢,烷基或烷酰基,-NR.sup.3 R.sup.4是可选择地取代的氨基或杂环基,-COOR.sup.5是羧基,-COO^.-,-COOM.sub.x(其中M是阳离子,x是阳离子M的价的倒数)或者保护羧基,其中-COOR.sup.5是羧基,-COOM.sub.x或者保护羧基时,化合物的公式(I)还包含一个阴离子;l、m和n独立地为0、1、2或3,只要(m+n)是从2到6的整数;p为0、1或2;Y是单键,氧,硫或R.sup.8 N<(其中R.sup.8是氢,烷基或烷酰基)及其药学上可接受的盐和酯可能是有价值的抗生素。