[CH2:1]([N:8]1[CH2:13][CH2:12][CH:11]([CH2:14][N:15]([CH2:25][CH3:26])[C:16]2[C:21]([N+:22]([O-])=O)=[CH:20][CH:19]=[CH:18][N:17]=2)[CH2:10][CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>C1COCC1.[Pt]=O>[CH2:1]([N:8]1[CH2:13][CH2:12][CH:11]([CH2:14][N:15]([CH2:25][CH3:26])[C:16]2[C:21]([NH2:22])=[CH:20][CH:19]=[CH:18][N:17]=2)[CH2:10][CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=11-Benzyl-4-[(N-ethyl-N-(3-nitro-2-pyridinyl)amino)methyl]piperidine (EXAMPLE 262, 4.70 g) is dissolved in 40 ml of THF and 1.7 g of platinum oxide is added and the reaction is placed on a Parr hydrogenator at 10 psi for 1 hr. Then a further 800 mg of platinum oxide is added and the reaction hydrogenated another hour. Then it is filtered through celite and concentrated under reduced pressure to provide the title compound.
Wird geladen…