Triethylamine → Carbonic acid 3-(5-chloro-2-methoxy-phenyl)-3-fluoro-2-oxo-6-trifluoromethyl-2,3-dihydro-indol-1-ylmethyl ester 4-nitro-phenyl ester
反応式
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:25][CH3:26])=[C:6]([C@@:8]2([F:24])[C:16]3[C:11](=[CH:12][C:13]([C:17]([F:20])([F:19])[F:18])=[CH:14][CH:15]=3)[N:10]([CH2:21][OH:22])[C:9]2=[O:23])[CH:7]=1.C(N(CC)CC)C.Cl[C:35]([O:37][C:38]1[CH:43]=[CH:42][C:41]([N+:44]([O-:46])=[O:45])=[CH:40][CH:39]=1)=[O:36]>ClCCl>[N+:44]([C:41]1[CH:40]=[CH:39][C:38]([O:37][C:35](=[O:36])[O:22][CH2:21][N:10]2[C:11]3[C:16](=[CH:15][CH:14]=[C:13]([C:17]([F:20])([F:18])[F:19])[CH:12]=3)[C:8]([C:6]3[CH:7]=[C:2]([Cl:1])[CH:3]=[CH:4][C:5]=3[O:25][CH3:26])([F:24])[C:9]2=[O:23])=[CH:43][CH:42]=1)([O-:46])=[O:45]参加物
実験手順
To a 25 mL round bottom flask containing (S)-3-(5-chloro-2-methoxy-phenyl)-3-fluoro-1-hydroxymethyl-6-trifluoromethyl-1,3-dihydro-indol-2-one ((S)-IV) (0.397 g, 1.02 mmol) was added 5 mL anhydrous dichloromethane, triethylamine (0.204 g, 2.04 mmol), and 4-nitrophenyl chloroformate (0.246 g, 1.22 mmol). The reaction was allowed to stir overnight at room temperature, affording carbonic acid 3-(5-chloro-2-methoxy-phenyl)-3-fluoro-2-oxo-6-trifluoromethyl-2,3-dihydro-indol-1-ylmethyl ester 4-nitro-phenyl ester (VIII), after which 2-aminoethanol (0.186 g, 3.05 mmol) was added and the reaction was allowed to stir for an additional 24 hours. The solvent was removed in vacuo, and the crude residue was purified by column chromatography (silica gel; 1:1 Hex:EtOAc to 4:1 EtOAc:Hex) producing 0.250 g (51%) of the title compound. 1H NMR (CDCl3 400 MHz): δ=7.78 (s,1H), 7.51 (s, 1H), 7.33 (d, 2H, J=7 Hz), 7.22 (d, 1H, J=7 Hz), 6.74 (d, 1H, J=7 Hz), 5.88 (d, 1H, J=12 Hz), 5.83 (d, 1H, J=12 Hz), 3.75 (m, 2H), 3.50 (s, 3H), 3.39 (m, 2H, J=7 Hz).
出典と根拠
- ORDレコード
- ord-21b5e8098a0e4276b4e2eca8f8c9678f
- 出典データセット
- uspto-grants-2005_08
- 特許番号
- US06930100B2
反応ノート
読み込み中…