ANTHRACYCLINE COMPOUNDS HAVING ANTI-TUMOUR ACTIVITY, NOVEL INTERMEDIATES FOR THE PREPARATION OF THESE ANTHRACYCLINE COMPOUNDS, AS WELL AS COMPOSITIONS CONTAINING SAID ACTIVE ANTHRACYCLINE COMPOUNDS

摘要

S 5719-9 Can This invention provides novel anti-tumour compounds of the formula wherein R1 and R2 axe hydrogen or together form an alkyl-, alkoxy- or OH-substituted aromatic group, which optionally contains an N atom as a hetero-atom; R is -OOCH3 or -C=C-R4 and R4 is H or trimethylsilyl; and R3 is H or -COCF3; and acid addition salts thereof; as well as compositions containing these compounds.