Bis(4-demethoxydaunorubicin)dihydrazone derivatives and
申请人:G. D. Searle & Co.
公开号:US04275192A1
公开(公告)日:1981-06-23
The present invention relates to bis(4-demethoxydaunorubicin)dihydrazone of the formula ##STR1## wherein R.sub.1 and R.sub.2 represent hydrogen or alkyl having from 1 to 4 carbon atoms and X represents (a) alkylene having from 3 to 20 carbon atoms and optionally substituted by one or more hydroxy and/or primary amino groups, or (b) alkylene optionally interrupted by one or more secondary amino groups, the total number of carbon and nitrogen atoms in the resultant chain being 3 to 20 and to pharmacologically acceptable salts thereof which are potent inhibitors of neoplastic disease and are also useful as antiviral agents.