(R)-ethyl 1-(6-amino-5-nitropyridin-2-yl)piperidine-3-carboxylate → (R)-ethyl 1-(5,6-diaminopyridin-2-yl)piperidine-3-carboxylate

反応式

[NH2:1][C:2]1[N:7]=[C:6]([N:8]2[CH2:13][CH2:12][CH2:11][C@@H:10]([C:14]([O:16][CH2:17][CH3:18])=[O:15])[CH2:9]2)[CH:5]=[CH:4][C:3]=1[N+:19]([O-])=O.[H][H]>C(O)C.[Pd]>[NH2:19][C:3]1[CH:4]=[CH:5][C:6]([N:8]2[CH2:13][CH2:12][CH2:11][C@@H:10]([C:14]([O:16][CH2:17][CH3:18])=[O:15])[CH2:9]2)=[N:7][C:2]=1[NH2:1]

参加物

実験手順

To a solution of (R)-ethyl 1-(6-amino-5-nitropyridin-2-yl)piperidine-3-carboxylate (1.0 g, 3.39 mmol) in ethanol (30 mL) was added a suspension of 10% palladium-on-carbon (500 mg) in ethanol at room temperature. The mixture was hydrogenated using a balloon filled with hydrogen gas for 4 h. The mixture was filtered through a pad of Celite and the filtrate was used for the next step without further purification.