申请人:BioSearch Italia, S.p.A.
公开号:US06008225A1
公开(公告)日:1999-12-28
Mono- or di-substituted derivatives of GE2270 factors C.sub.2a, D.sub.2 and E of general formula (I), wherein W represents a moiety of formula (a), (b) or (c), R.sup.1 and R.sup.2 representing a variety of substituents, X.sup.1 is methyl, X.sup.2 is a --CH.sub.2 --W.sup.1 moiety and X.sup.3 is methylamino or amino, or X.sup.1 is a --CH.sub.2 --W.sup.1 moiety, X.sup.2 is methoxymethylene and X.sup.3 is methylamino, with the proviso that when X.sup.3 is amino, then W must be 2-(aminocarbonyl)-pyrrolidinyl; with the further proviso that when W is 2-(aminocarbonyl)-pyrrolidinyl, then W.sup.1 cannot be hydroxy; and the pharmaceutically acceptable salts thereof. The mono- or di-substituted derivatives of antibiotic GE 2270 of formula (I) are antimicrobial agents mainly active against gram positive bacteria. ##STR1##
公式(I)中GE2270因子C.sub.2a,D.sub.2和E的单取代或双取代衍生物,其中W表示公式(a),(b)或(c)的一个基团,R.sup.1和R.sup.2表示各种取代基,X.sup.1为甲基,X.sup.2为--CH.sub.2--W.sup.1基团,X.sup.3为甲基氨基或氨基,或者X.sup.1为--CH.sub.2--W.sup.1基团,X.sup.2为甲氧基亚甲基,X.sup.3为甲基氨基,但当X.sup.3为氨基时,W必须是2-(氨基甲酰基)-吡咯烷基;进一步规定,当W为2-(氨基甲酰基)-吡咯烷基时,W.sup.1不能是羟基;以及其药学上可接受的盐。公式(I)中抗生素GE 2270的单取代或双取代衍生物是主要对革兰氏阳性细菌活性的抗微生物剂。