Tetrahydrofuran → 4-(3-Oxo-1-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-N-[(3R)-2-oxo-5-phenyl-1-(2,2,2-trifluoroethyl)-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]piperidine-1-carboxamide
反応式
[NH2:1][C@@H:2]1[N:8]=[C:7]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)[C:6]2[CH:15]=[CH:16][CH:17]=[CH:18][C:5]=2[N:4]([CH2:19][C:20]([F:23])([F:22])[F:21])[C:3]1=[O:24].C(N(CC)CC)C.[C:32]1([N:38]2[CH:42]=[C:41]([CH:43]3[CH2:48][CH2:47][NH:46][CH2:45][CH2:44]3)[C:40](=[O:49])[NH:39]2)[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1.[O:50]1CCC[CH2:51]1>>[O:49]=[C:40]1[C:41]([CH:43]2[CH2:44][CH2:45][N:46]([C:51]([NH:1][C@@H:2]3[N:8]=[C:7]([C:9]4[CH:10]=[CH:11][CH:12]=[CH:13][CH:14]=4)[C:6]4[CH:15]=[CH:16][CH:17]=[CH:18][C:5]=4[N:4]([CH2:19][C:20]([F:21])([F:23])[F:22])[C:3]3=[O:24])=[O:50])[CH2:47][CH2:48]2)=[CH:42][N:38]([C:32]2[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=2)[NH:39]1参加物
実験手順
(3R)-3-Amino-5-phenyl-1-(2,2,2-trifluoroethyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one (137 mg, 0.411 mmol) (Y.-J. Shi et al., Tetrahedron, 1999, 55, 909-918) and triethylamine (0.057 mL, 0.411 mmol) were added to a solution of p-nitrophenylchloroformate (83 mg, 0.411 mmol) in tetrahydrofuran (20 mL) at 0° C. After 1 h, 1-phenyl-4-piperidin-4-yl-1,2-dihydro-3H-pyrazol-3-one (50 mg, 0.205 mmol) and additional triethylamine (0.171 mL, 1.23 mmol) were added and the reaction warmed to ambient temperature and was then heated at 50° C. After 4 h, the reaction was concentrated and partitioned between ethyl acetate and saturated sodium bicarbonate. The organics were washed with water, brine, and dried over magnesium sulfate. Purification by silica gel chromatography (100% dichloromethane→10% methanol {1% ammonium hydroxide}/dichloromethane) gave the title compound (27 mg). MS 603.23 (M+1)
後処理
- temperaturewas then heated at 50° C
- waitAfter 4 h
- concentrationthe reaction was concentrated
- custompartitioned between ethyl acetate and saturated sodium bicarbonate
- washThe organics were washed with water, brine
- dry with materialdried over magnesium sulfate
- customPurification by silica gel chromatography (100% dichloromethane→10% methanol {1% ammonium hydroxide}/dichloromethane)
出典と根拠
- ORDレコード
- ord-c1a3bbb98a194ac68392a5da5789ab26
- 出典データセット
- uspto-grants-2009_12
- 特許番号
- US07632832B2
反応ノート
読み込み中…