反応式
[CH2:1]([O:3][C:4](=[O:23])[CH2:5][CH2:6][C:7]1[CH:12]=[CH:11][CH:10]=[C:9]([N:13]2[C:17]([NH2:18])=[CH:16][C:15]([C:19]([CH3:22])([CH3:21])[CH3:20])=[N:14]2)[CH:8]=1)[CH3:2].[C:24]1([C:34](F)=[O:35])[C:33]2[C:28](=[CH:29][CH:30]=[CH:31][CH:32]=2)[CH:27]=[CH:26][CH:25]=1>C(Cl)Cl>[CH2:1]([O:3][C:4](=[O:23])[CH2:5][CH2:6][C:7]1[CH:12]=[CH:11][CH:10]=[C:9]([N:13]2[C:17]([NH:18][C:34]([C:24]3[C:33]4[C:28](=[CH:29][CH:30]=[CH:31][CH:32]=4)[CH:27]=[CH:26][CH:25]=3)=[O:35])=[CH:16][C:15]([C:19]([CH3:22])([CH3:21])[CH3:20])=[N:14]2)[CH:8]=1)[CH3:2]参加物
実験手順
A solution of Example Z (315 mg, 1.0 mmol) and Barton's base (0.5 mL) in anhydrous CH2Cl2 (5 mL) under N2 was stirred at RT for 30 min, and then added to a solution of naphthalene-1-carbonyl fluoride (348 mg, 0.2 mmol) in anhydrous CH2Cl2 (5 mL). The resulting mixture was stirred at RT overnight. After quenching with water (100 mL), the reaction mixture was extracted with ethyl acetate (3×100 mL). The combined organic extracts were washed with brine, dried (NaSO4), filtered and concentrated under reduced pressure to yield a residue which was purified by flash chromatography to afford 3-(3-{3-t-butyl-5-[(naphthalene-1-carbonyl)-amino]-pyrazol-1-yl}-phenyl)-propionic acid ethyl ester, (350 mg, 74%). 1H-NMR (CDCL3): 8.29 (d, J=8.0 Hz, 1H), 7.98 (d, J=7.2 Hz, 2H), 7.89 (d, J=7.2 Hz, 1H), 7.62–7.57 (m, 3H), 7.49–7.28 (m, 4H), 7.03 (s, 1H), 3.94 (q, J=7.2 Hz, 2H), 2.96 (t, J=7.2 Hz, 2H), 2.58 (t, J=7.2 Hz, 2H), 1.45 (s, 9H), 1.13 (t, J=7.2 Hz, 3H); MS (ESI) m/z: 470 (M+H+).
後処理
- customAfter quenching with water (100 mL)
- extractionthe reaction mixture was extracted with ethyl acetate (3×100 mL)
- washThe combined organic extracts were washed with brine
- dry with materialdried (NaSO4)
- filtrationfiltered
- concentrationconcentrated under reduced pressure
- customto yield a residue which
- customwas purified by flash chromatography
出典と根拠
- ORDレコード
- ord-5ad7ffaa2df749e18a291d247742083a
- 出典データセット
- uspto-grants-2007_04
- 特許番号
- US07202257B2
関連ノート
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