| abstract |
The invention relates to an aminostilbazole derivative of the following formula or a hydrate thereof, and a salt thereof. <CHEM> wherein R<1> and R<2> each represents hydrogen etc.; R<3>, R<4>, R<13>, and R<14> each represents hydrogen, C1-3 acyl, halogen, hydroxy etc.; R<5> represents hydrogen or hydroxy-substituted C1-3 alkyl etc.; R<6> represents benzenesulfonyl substituted by C1-3 alkoxy etc.; ring Y represents phenyl etc.; ring Z represents 4-pyridyl, its oxide etc. The compound is useful for the treatment of various malignant tumors. |