Trifluoroacetic acid → HCID 57750272、化合物
反応式
C(O)(C(F)(F)F)=O.[Cl:8][C:9]1[CH:14]=[CH:13][C:12]([CH:15]([NH:22][C:23]([C:25]2([NH:40]C(=O)OC(C)(C)C)[CH2:30][CH2:29][N:28]([C:31]3[C:32]4[CH:39]=[CH:38][NH:37][C:33]=4[N:34]=[CH:35][N:36]=3)[CH2:27][CH2:26]2)=[O:24])[CH2:16][N:17]2[CH:21]=[CH:20][CH:19]=[N:18]2)=[CH:11][CH:10]=1>ClCCl>[NH2:40][C:25]1([C:23]([NH:22][CH:15]([C:12]2[CH:13]=[CH:14][C:9]([Cl:8])=[CH:10][CH:11]=2)[CH2:16][N:17]2[CH:21]=[CH:20][CH:19]=[N:18]2)=[O:24])[CH2:30][CH2:29][N:28]([C:31]2[C:32]3[CH:39]=[CH:38][NH:37][C:33]=3[N:34]=[CH:35][N:36]=2)[CH2:27][CH2:26]1参加物
4
実験手順
TFA (0.7 mL) was added to a suspension of tert-butyl 4-(1-(4-chlorophenyl)-2-(1H-pyrazol-1-yl)ethylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate (180 mg, 0.32 mmol) in dichloromethane (Intermediate 93) (7 mL) under argon. The resulting solution was stirred at room temperature overnight. The solvents were removed in vacuo and the reaction mixture was purified by preparative HPLC using a Waters X-Bridge reverse-phase column (C-18, 5 microns silica, 19 mm diameter, 100 mm length) and decreasingly polar mixtures of water (containing 0.2% ammonium carbonate) and acetonitrile as eluent. The fractions were evaporated to dryness to afford 4-amino-N-[1-(4-chlorophenyl)-2-(1H-pyrazol-1-yl)ethyl]-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamide as a white powder.