Anthracycline glycosides, intermediate compounds, process for preparing both and pharmaceutical compositions.

摘要

Anthracycline glycosides of Formula I

wherein R1 represents a hydrogen atom or a hydroxy group; R2 represents a hydrogen atom or an acyl group; R3 represents hydrogen, a methyl, amino, hydroxymethyl, aminomethyl or acylaminomethyl group; R4 represents a hydrogen atom, an amino or a hydroxy group; R3 and R4 together may represent a methylene group, and their pharmaceutically acceptable acid addition salts, together with a process of preparation are disclosed.
There are also described new intermediate compounds as well as pharmaceutical compositions, which are effective against certain mammalian tumors.