abstract |
Compounds of the formulan wherein each R 1 and R 2 is independently hydrogen, hydroxy, C 1 -C 3 alkoxy, C 1 -C 3 alkyl, halo, trifluoromethyl, nitro, or amino, with the limitation that when one of R 1 and R 2 is hydrogen, the other of R 1 and R 2 may not be hydrogen or hydroxy, are useful angiogenesis inhibitors. |