FIELD: medicine, pharmaceutics.
SUBSTANCE: invention describes a crystalline hydrate of camptothecin esters, namely the crystalline hydrates of camptothecin aliphatic esters, a pharmaceutical composition containing the crystalline hydrates of camptothecin aliphatic esters for treating cancer or malignant tumours, as well as a method for treating cancer or malignant tumour.
EFFECT: what is prepared and described is the new crystalline form of the hydrate of camptothecin aliphatic ester possessing low toxicity and good absorbability in a living body.
19 cl, 5 ex, 10 tbl, 5 dwg
