A compound having the structural formula, ##STR1## where R.sup.1 and R.sup.2 are independently hydrogen or hydroxyl. R.sup.2 and R.sup.3 are independently oxo or hydrogen, one of R.sup.5 and R.sup.6 is A--B and the other is hydrogen, hydroxyl, or a group A, wherein each A is a spacer group providing --NH-- or --CO-- in the bond with B (if present); at least one A group does not provide the residue of an .alpha.-amino acid adjacent the anthraquinone nucleus and the A of any A--B moiety is joined to the anthraquinone nucleus via an --NH-- bond, and each B is a peptide group or a physiologically acceptable derivative thereof. The compounds are useful as antitumor compounds.
一种具有结构式##STR1##的化合物,其中R.sup.1和R.sup.2分别独立地是氢或羟基。R.sup.2和R.sup.3独立地是氧代或氢,R.sup.5和R.sup.6中的一个是A--B,另一个是氢、羟基或基团A,其中每个A是提供与B(如果存在)的键中的--NH--或--CO--的间隔基团;至少一个A基团不提供邻近
蒽醌核的
α-氨基酸残基,任何A--B基团的A通过一个--NH--键与
蒽醌核相连,每个B是肽基团或其生理上可接受的衍
生物。这些化合物可用作抗肿瘤化合物。