[CH3:1][CH:2]([OH:17])[C:3]1[O:7][C:6]([C:8]2[CH:13]=[CH:12][C:11]([N+:14]([O-])=O)=[CH:10][CH:9]=2)=[CH:5][CH:4]=1.O>[Pd].CO>[CH3:1][CH:2]([OH:17])[C:3]1[O:7][C:6]([C:8]2[CH:13]=[CH:12][C:11]([NH2:14])=[CH:10][CH:9]=2)=[CH:5][CH:4]=1A mixture of 79 g (0.34 mole) of the compound of Example I, 1 tsp. of 5% Pd/C, 50% H2O, and 500 ml of methanol was shaken under hydrogen pressure with the theoretical amount of H2 being absorbed. The catalyst was removed by filtration, and the filtrate was taken to near dryness on a Calab evaporator. The resulting solid was filtered and air-dried to yield 49 g (71%) of title compound. An analytical sample was prepared by recrystallizing a sample twice from ethanol/charcoal, m.p. 100°-104°.
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