Ammonia → Benzyl 3-[4-carbamoyl-3-(3-methoxypropoxy)benzyloxy]-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidin-1-carboxylate
反応式
Cl[C:2]([C:4]1[CH:47]=[CH:46][C:7]([CH2:8][O:9][CH:10]2[CH:15]([C:16]3[CH:21]=[CH:20][C:19]([O:22][CH2:23][CH2:24][CH2:25][O:26][CH2:27][C:28]4[CH:33]=[CH:32][CH:31]=[CH:30][C:29]=4[O:34][CH3:35])=[CH:18][CH:17]=3)[CH2:14][CH2:13][N:12]([C:36]([O:38][CH2:39][C:40]3[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=3)=[O:37])[CH2:11]2)=[CH:6][C:5]=1[O:48][CH2:49][CH2:50][CH2:51][O:52][CH3:53])=[O:3].[NH3:54]>C1(C)C=CC=CC=1>[C:2]([C:4]1[CH:47]=[CH:46][C:7]([CH2:8][O:9][CH:10]2[CH:15]([C:16]3[CH:21]=[CH:20][C:19]([O:22][CH2:23][CH2:24][CH2:25][O:26][CH2:27][C:28]4[CH:33]=[CH:32][CH:31]=[CH:30][C:29]=4[O:34][CH3:35])=[CH:18][CH:17]=3)[CH2:14][CH2:13][N:12]([C:36]([O:38][CH2:39][C:40]3[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=3)=[O:37])[CH2:11]2)=[CH:6][C:5]=1[O:48][CH2:49][CH2:50][CH2:51][O:52][CH3:53])(=[O:3])[NH2:54]参加物
4
実験手順
The solution of 0.290 g of benzyl 3-[4-chlorocarbonyl-3-(3-methoxypropoxy)benzyloxy]-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate in 1.0 ml of toluene is added dropwise slowly to 2.30 ml of ammonia solution (7M in methanol, precooled to 0° C.). After 15 minutes, the reaction solution is poured onto water (20 ml) and extracted with tert-butyl methyl ether (2×20 ml). The organic phases are washed with brine (1×30 ml), dried over sodium sulphate, filtered and concentrated by evaporation. The title compound is obtained as a colourless oil from the residue by means of flash chromatography (SiO2 60F). Rf=0.06 (2:1 EtOAc-heptane); Rt=5.56.