1 O3Y 4-(2-chlorophenyl)-3-hydroxy-7,7-dimethyl-2-phenyl-2,6,7,8-tetrahydro-5h-pyrazolo[3,4-B]quinolin-5-one 1.000 2 O3V 3-hydroxy-7,7-dimethyl-2-phenyl-4-(thiophen-2-yl)-2,6,7,8-tetrahydro-5h-pyrazolo[3,4-B]quinolin-5-one 0.871