1 0MT 4-[(4r)-4-(4-nitrophenyl)-6-oxidanylidene-3-phenyl-1,4-dihydropyrrolo[3,4-C]pyrazol-5-yl]benzoic acid 1.000 2 A1EE1 (4~{R})-5-(4-hydroxyphenyl)-3-(4-methylphenyl)-4-phenyl-2,4-dihydropyrrolo[3,4-C]pyrazol-6-one 0.771