1-benzyl 4-tert-butyl ((1S)-1-{[1-methyl-5-(tritylamino)-1H-pyrazol-4-yl]carbamoyl}tetramethylene)biscarbamate → tert-butyl (4S)-4-amino-5-{[1-methyl-5-(tritylamino)-1H-pyrazol-4-yl]amino)-5-oxopentylcarbamate
反応式
[CH3:1][N:2]1[C:6]([NH:7][C:8]([C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)=[C:5]([NH:27][C:28]([C@@H:30]([NH:42]C(=O)OCC2C=CC=CC=2)[CH2:31][CH2:32][CH2:33][NH:34][C:35](=[O:41])[O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:29])[CH:4]=[N:3]1>CO.[Pd]>[NH2:42][C@H:30]([C:28]([NH:27][C:5]1[CH:4]=[N:3][N:2]([CH3:1])[C:6]=1[NH:7][C:8]([C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)([C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1)[C:9]1[CH:10]=[CH:11][CH:12]=[CH:13][CH:14]=1)=[O:29])[CH2:31][CH2:32][CH2:33][NH:34][C:35](=[O:41])[O:36][C:37]([CH3:40])([CH3:39])[CH3:38]参加物
4
実験手順
A solution of 1-benzyl 4-tert-butyl ((1S)-1-{[1-methyl-5-(tritylamino)-1H-pyrazol-4-yl]carbamoyl}tetramethylene)biscarbamate (6.4 g) in methanol (100 ml) was treated with 10% palladium on carbon (1.0 g) under a hydrogen atmosphere at room temperature for 6 days. After the catalyst was filtered off, the filtrate was concentrated in vacuo. The residue was triturated with ether and dried in vacuo to give tert-butyl (4S)-4-amino-5-{[1-methyl-5-(tritylamino)-1H-pyrazol-4-yl]amino}-5-oxopentylcarbamate (2.2 g) as a solid.