Trifluoroacetic acid → N-(piperidine-4-carbonyl)-3-(3-pridyl)-alanine [4-phenyl-1-(3-phenyl-propyl)-butyl]-amide
反応式
[C:1]1([CH2:7][CH2:8][CH2:9][CH:10]([NH:20][C:21](=[O:46])[C@H:22]([CH2:39][C:40]2[CH:41]=[N:42][CH:43]=[CH:44][CH:45]=2)[NH:23][C:24]([CH:26]2[CH2:31][CH2:30][N:29](C(OC(C)(C)C)=O)[CH2:28][CH2:27]2)=[O:25])[CH2:11][CH2:12][CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.FC(F)(F)C(O)=O>C(Cl)Cl>[C:14]1([CH2:13][CH2:12][CH2:11][CH:10]([NH:20][C:21](=[O:46])[C@H:22]([CH2:39][C:40]2[CH:41]=[N:42][CH:43]=[CH:44][CH:45]=2)[NH:23][C:24]([CH:26]2[CH2:31][CH2:30][NH:29][CH2:28][CH2:27]2)=[O:25])[CH2:9][CH2:8][CH2:7][C:1]2[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=2)[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=1参加物
4
反応物 2
生成物 1
試薬・触媒・溶媒 1
実験手順
N-(N-tert-Butoxycarbonyl-piperidine-4-carbonyl)- 3-(3-pyridyl)-alanine [4-phenyl-1-(3-phenyl-propyl)-butyl]-amide (86) (1.30 g; 2.07 mmol) is dissolved in methylene chloride (40 mL) at ambient temperature. Trifluoroacetic acid (20 mL) is added in a slow stream, and the solution is stirred for 2 hours at ambient temperature. The solution is concentrated in vacuo at 40° C. The residue is dissolved in methylene chloride (200 mL) and poured onto saturated sodium bicarbonate solution. The pH is adjusted to 9 with saturated potassium carbonate solution. The mixture is shaken the layers separated. The water layer is extracted with methylene chloride (3×50 mL). The combined organic extracts are washed with water, dried over MgSO4, filtered, and concentrated in vacuo affording the desired product (0.98 g) as a white solid. ESMS:MH+ 527.2