申请人:Laboratoires Hoechst S.A.
公开号:US04731468A1
公开(公告)日:1988-03-15
The present invention relates to new aglycons which correspond to the general formula: ##STR1## in which: R.sub.1, R.sub.2, R.sub.3 and R.sub.5, which can be identical or different, represent a hydrogen atom or a group OH, OMetal or OR.sub.4, R.sub.4 being a substituted or unsubstituted C.sub.1 to C.sub.6 alkyl group, R represents a hydrogen atom or a group COCH.sub.2 R', R' being hydrogen or an alkyl, hydroxyl, alkoxy or aryl group, R.sub.6 and R.sub.7, which are always different, represent either a hydrogen atom or an OH group, and R.sub.8 represents a hydrogen atom or the group CH.sub.3 CO--. Application to the preparation of antibiotics and antitumoral agents.
本发明涉及与一般式相对应的新的非糖基化合物:##STR1##
其中:R1、R2、R3和R5可以相同也可以不同,代表氢原子或羟基、金属羟基或OR4基团,其中R4代表取代或未取代的C1至C6烷基基团,R代表氢原子或COCH2R'基团,其中R'代表氢或烷基、羟基、烷氧基或芳基基团,R6和R7始终不同,代表氢原子或羟基基团,R8代表氢原子或CH3CO-基团。应用于抗生素和抗肿瘤药物的制备。