The present invention provides polymer-bound anthracyclines of formula A which consists essentially of three units represented by formulae 1, 2 and 3: ##STR1## wherein: Gly represents glycine; n is 0 or 1; x is from 70 to 98 mol %, y is from 1 to 29 mol %, z is from 1 to 29 mol %, R.sub.1 is a C.sub.1 -C.sub.6 alkyl group substituted by one or more hydroxy groups; Y is an amino acid residue or a peptide spacer; [NH--D] is the residue of an anthracycline aminoglycoside [NH.sub.2 --D]; and Z is a hydroxy group or a residue of formula --NHR.sub.1 wherein R.sub.1 is as defined above. Methods for their preparation and pharmaceutical compositions containing them are also provided.
本发明提供了具有公式A的聚合物结合的
蒽环类化合物,其基本上由公式1、2和3所代表的三个单元组成:##STR1## 其中:Gly代表甘
氨酸;n为0或1;x为70到98摩尔%,y为1到29摩尔%,z为1到29摩尔%,R.sub.1是一个C.sub.1-C.sub.6烷基,被一个或多个羟基取代;Y是
氨基酸残基或肽间隔;[NH--D]是
蒽环类
氨基糖苷[NH.sub.2 --D]的残基;Z是一个羟基或公式--NHR.sub.1的残基,其中R.sub.1如上所定义。还提供了其制备方法和含有它们的药物组合物。