Hydrochloric Acid → 2-(1-(2-amino-2-phenylacetyl)-4-piperidinyl)-5-methyl-1,2-dihydro-3H-imidazo[1,5-c]imidazol-3-one dihydrochloride
反応式
[CH3:1][C:2]1[N:6]2[C:7](=[O:33])[N:8]([CH:10]3[CH2:15][CH2:14][N:13]([C:16](=[O:32])[CH:17]([NH:24]C(=O)OC(C)(C)C)[C:18]4[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=4)[CH2:12][CH2:11]3)[CH2:9][C:5]2=[CH:4][N:3]=1.[ClH:34]>C(O)C>[ClH:34].[ClH:34].[NH2:24][CH:17]([C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1)[C:16]([N:13]1[CH2:14][CH2:15][CH:10]([N:8]2[CH2:9][C:5]3=[CH:4][N:3]=[C:2]([CH3:1])[N:6]3[C:7]2=[O:33])[CH2:11][CH2:12]1)=[O:32]参加物
4
反応物 2
生成物 1
試薬・触媒・溶媒 1
実験手順
tert-Butyl 2-(4-(5-methyl-3-oxo-1H-imidazo[1,5-c]imidazol-2(3H)-yl)-1-piperidinyl)-2-oxo-1-phenylethylcarbamate (13 g) obtained in Example 50a) was dissolved in concentrated hydrochloric acid (30 ml) and ethanol (30 ml). The reaction mixture was mixed at room temperature for 30 minutes, and then the solvent was distilled off under reduced pressure. Water in the residue was removed by azeotropy with ethanol to obtain the title compound as pale yellow powder (12 g, quantitative).