反応式
[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]([CH2:10][C:11]([OH:13])=[O:12])=[CH:2]1.C([Li])CCC.[Cl:19][C:20]1[N:21]=[C:22]2[N:26]([C:27]=1[S:28](Cl)(=[O:30])=[O:29])[CH:25]=[CH:24][S:23]2>C1COCC1>[Cl:19][C:20]1[N:21]=[C:22]2[N:26]([C:27]=1[S:28]([N:1]1[C:9]3[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=3)[C:3]([CH2:10][C:11]([OH:13])=[O:12])=[CH:2]1)(=[O:30])=[O:29])[CH:25]=[CH:24][S:23]2参加物
実験手順
A stirred solution of 3-indolylacetic acid (175 mg, 1.00 mmol) in THF is cooled to −78° C. under nitrogen and treated portionwise with 2.5 M n-butyllithium in hexanes (0.84 mL, 2.10 mmol) over a 10 min. period. After 1 h at −78° C., the reaction mixture is treated with (6-chloroimidazo[2,1-b][1,3]thiazol-5-yl)sulfonyl chloride (257 mg, 1.00 mmol) in THF, allowed to warm to ambient temperature, stirred for 24 h and concentrated in vacuo. The resultant residue is treated with 1 M aq HCl (˜2 mL) and water (3 mL) and extracted with dichloromethane. The extracts are combined, dried (MgSO4) and concentrated in vacuo. Chromatography of this residue, eluting with ethyl acetate, affords the title compound as a light tan solid, 32 mg, mp 220-222° C. (darkens>200° C.), identified by mass spectral and NMR analyses.
後処理
- concentrationconcentrated in vacuo
- additionThe resultant residue is treated with 1 M aq HCl (˜2 mL) and water (3 mL)
- extractionextracted with dichloromethane
- dry with materialdried (MgSO4)
- concentrationconcentrated in vacuo
- washChromatography of this residue, eluting with ethyl acetate
出典と根拠
- ORDレコード
- ord-67b6ab2bb49b4b18a905c4f867c281dc
- 出典データセット
- uspto-grants-2009_03
- 特許番号
- US07498327B2
関連ノート
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