Methanesulfonyl chloride → HCID 86681621、化合物
反応式
[NH2:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]([CH2:11][C:12]([O:14][CH3:15])=[O:13])[CH:6]=[CH:5]2.[CH3:16][S:17](Cl)(=[O:19])=[O:18]>N1C=CC=CC=1>[CH3:16][S:17]([NH:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]([CH2:11][C:12]([O:14][CH3:15])=[O:13])[CH:6]=[CH:5]2)(=[O:19])=[O:18]参加物
4
実験手順
To a solution of methyl 2-(5-amino-1H-indol-1-yl)acetate (730 mg, 3.54 mmol) in pyridine (15 ml), methanesulfonyl chloride (418 μl, 5.36 mmol) was added, and the mixture was reacted for 2 hours at room temperature. The solvent was evaporated and the resulting crude was partitioned between 1N HCl and ethyl acetate; the aqueous phase was extracted with ethyl acetate (3×30 ml) and dried over sodium sulfate. The solvent was removed obtaining crude methyl 2-(5-(methylsulfonamido)-1H-indol-1-yl)acetate that was used in the next step without any additional purification (1 g, 3.54 mmol, quantitative yield). MS/ESI+ 283.3 [MH]+.