GB9714249D0 — Vascular damaging agents

USPTO Abstract

Colchinol derivatives of formulawhereinR1, R2, R3 and R6 are each independently H, optionally substituted alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, alkanoyl, PO3H2; X is carbonyl (CO), thiocarbonyl (CS), methylene (CH2) or a group CHR4; R4 is OH, O-alkyl or NR8R9; R5 and R7 are each independently H, alkyl, halogen, hydroxy, alkoxy, nitro or amino; R8 is H, optionally substituted alkyl, cycloalkyl, alkanoyl, thioalkanoyl, aryl, heteroaryl, arylcarbonyl, heteroarylcarbonyl, alkoxycarbonyl, aryloxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, arylaminocarbonyl, alkylsulphonyl, arylsulphonyl, aminosulphonyl, alkylaminosulphonyl, dialkylaminosulphonyl or arylaminosulphonyl; and R9 is H, alkyl or cycloalkyl; and the pharmaceutically acceptable salts, solvates, and hydrates thereof have been found to be useful for treatment of diseases involving angiogenesis. Some of these compounds are novel. Particularly preferred are those compounds in which R6 is PO3H2.