Ethyl 4-amino-1-piperidinecarboxylate → HCID 68699686, 화합물
반응식
[CH3:1][O:2][C:3]([C:5]1[C:13]2[O:12][C:11](Cl)=[N:10][C:9]=2[CH:8]=[CH:7][CH:6]=1)=[O:4].[NH2:15][CH:16]1[CH2:21][CH2:20][N:19]([C:22]([O:24][CH2:25][CH3:26])=[O:23])[CH2:18][CH2:17]1>C(#N)C>[CH3:1][O:2][C:3]([C:5]1[C:13]2[O:12][C:11]([NH:15][CH:16]3[CH2:17][CH2:18][N:19]([C:22]([O:24][CH2:25][CH3:26])=[O:23])[CH2:20][CH2:21]3)=[N:10][C:9]=2[CH:8]=[CH:7][CH:6]=1)=[O:4]참가 물질
4
실험 절차
To a solution of 2-chloro-benzooxazole-7-carboxylic acid methyl ester (0.43 g, 2.05 mmol, 1.0 equiv) in acetonitrile (30 mL) was added ethyl 4-amino-1-piperidine carboxylate (0.64 g, 3.08 mmol, 1.5 equiv) and the reaction mixture heated to reflux for 30 min. The solvent was removed under reduced pressure and the crude material purified with column chromatography on silica eluting with dichloromethane/methanol (4:1) to afforded 0.68 g (95%) of the title compound. 1H NMR (300 MHz, DMSO): δ 1.19 (t, J=7.0 Hz, 3H), 1.38-1.51 (m, 2H), 1.95-2.00 (m, 2H), 2.96-3.03 (m, 2H), 3.78-3.81 (m, 1H), 3.89 (s, 3H), 3.82-3.96 (m, 2H), 4.04 (q, J=7.0 Hz, 2H), 7.23 (t, J=7.9 Hz, 1H), 7.50 (dd, J=7.9 Hz, J=1.9 Hz, 2H), 8.34 (d, J=7.3 Hz, 2H). 13C NMR (75 MHz, DMSO): δ 14.54, 31.01, 42.04, 49.71, 52.05, 60.63, 112.36, 119.98, 121.27, 123.51, 144.77, 147.00, 154.57, 162.13, 164.17. MS (ISP): 347.9 [M+H]+.