| abstract |
Compositions for the inhibition of the formation of new vaculature by angiogenesis are provided as in compounds which are salts comprising as an acidic component a compound of formula (1) wherein: R?1, R2 and R3¿ are each independently alkyl, R4 is alkoxy, haloalkoxy, alkyl, haloalkyl, alkenyl, alkynyl, alkylthio, alkylsulphinyl, alkylsulphonyl, hydroxy or halo, R5 is hydrogen, alkoxy, alkyl, alkylthio, hydroxy, phosphate or halo, and, as the basic component, a compound selected from the group consisting of (2) a compound of formula (2) wherein R6 is hydrogen or alkyl R7 is alkyl, alkylamino, dialkylamino, nitroamino, hydrazine, mercapto or alkylthio X is CH¿2?, CH2CH2, CH2S, CH2CH2S Y is NH or S or a compound of formula (3) wherein R?8¿ is alkyl or aminoalkyl R9 is hydrogen, alkyl or optionally substituted phenyl or, a compound of formula (4) wherein Z is O, S, CH2, CHR13 or a bond R?10, R11, R12 and R13¿ are each independently alkyl or hydrogen or, a compound of formula (5) wherein R14 is alkyl and the pharmaceutically acceptable solvates and hydrates thereof. |