763142-86-5 Benzamide, 4-(1,3-dihydro-3-oxo-2H-pyrazolo[4,3-c]cinnolin-2-yl)-N-(1,2,2,6,6-pentamethyl-4-piperidinyl)- (9CI) benzamide, 4-(3,5-dihydro-3-oxo-2H-pyrazolo[4,3-c]cinnolin-2-yl)-N-(1,2,2,6,6-pentamethyl-4-piperidinyl)-