p. 2133,2134
(1942)p. 41 - 45
(1971)5-oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylic acid
phenylhydrazine
phenylhydrazine hydrochloride
4-Methyl-benzoic acid (3aR,4R,6R,6aR)-6-(4-benzoylamino-2-oxo-2H-pyrimidin-1-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-ylmethyl ester
phenylhydrazono-succinic acid diethyl ester
6-benzyl-2,4-diphenyl-5,6-dihydro-1H-pyrazolo[3,4-c]pyridine-3,7(2H,4H)-dione
C27H27N3O3
C20H21N3O3
2,4-diphenyl-5,6-dihydro-1H-pyrazolo[3,4-c]pyridine-3,7(2H,4H)-dione
ethyl 2,5-dihydro-4-(1,2,3,4-tetrahydro-2-nitronaphthalen-1-yl)-5-oxo-1-phenyl-1H-pyrazole-3-carboxylate