反応式
[CH3:1][C:2]1[CH:10]=[C:9]2[C:5]([CH:6]=[CH:7][NH:8]2)=[CH:4][CH:3]=1.[H-].[Na+].[N:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[S:19](Cl)(=[O:21])=[O:20]>C1COCC1>[CH3:1][C:2]1[CH:10]=[C:9]2[C:5]([CH:6]=[CH:7][N:8]2[S:19]([C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][N:13]=2)(=[O:21])=[O:20])=[CH:4][CH:3]=1参加物
実験手順
6-Methylindole (42) (7.34 g, 56.0 mmol) was added in portions to a mixture of sodium hydride (3.36 g, 84.0 mmol) in THF (80 mL) at 0° C. After 15 min, pyridine-2-sulfonyl chloride (43) (10.0 g, 56.0 mmol) was added, and the reaction was allowed to warm to rt and stirred overnight under N2. The reaction mixture was then quenched with ice water and extracted with EtOAc. The organic layers were combined, dried over MgSO4, and concentrated in vacuo. The crude product was purified by flash column chromatography eluting with a linear gradient ranging from 0 to 40% EtOAc-hexanes to provide 8.8 g (57%) of product 44 as a brown gum. 1H NMR (300 MHz, CDCl3) δ 2.44 (s, 3H), 6.62 (dd, J=1, 4 Hz, 1H), 7.03-7.06 (m, 1H), 7.41 (d, J=8 Hz, 1H), 7.41-7.45 (m, 1H), 7.59 (d, J=4 Hz, 1H), 7.79-7.81 (m, 1H), 7.84-7.90 (m, 1H), 8.10 (dt, J=1, 8 Hz, 1H), 8.58-8.60 (m, 1H). LC-MS (CI): m/z 273.0 [(M+H)+ C14H12N2O2S requires 272.06].
後処理
- customThe reaction mixture was then quenched with ice water
- extractionextracted with EtOAc
- dry with materialdried over MgSO4
- concentrationconcentrated in vacuo
- customThe crude product was purified by flash column chromatography
- washeluting with a linear gradient
出典と根拠
- ORDレコード
- ord-bf1088f376d1480fbf73035e44118c5d
- 出典データセット
- uspto-grants-2016_01
- 特許番号
- US09233921B2
関連ノート
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