反应详情

To a solution of 1-(4-methoxynaphthalene-1-sulfonyl)-2,3-dihydro-1H-indole-3-carboxylic acid (C) (900 mg, 2.35 mmol) in dichloromethane (20 cm3) was added 1-hydroxybenzotriazole (HOBT, 0.48 g, 3.53 mmol) and 1,3-diisopropylcarbodidiimide (DIC, 0.55 cm3, 3.53 mmol). This was left to stir at room temperature for 5 min, before adding 2-(1-methyl-pyrrolidin-2-yl)-ethylamine (0.342 cm3, 2.35 mmol). The reaction was stirred for 16 h at room temperature before water (60 cm3) was added followed by dichloromethane (60 cm3). The resulting mixture was then shaken and the organic layer was washed with water (40 cm3), saturated aqueous sodium bicarbonate solution (40 cm3), water again (40 cm3) and then saturated aqueous sodium chloride solution (50 cm3) before the organic portion was dried over sodium sulfate, It was then evaporated under reduced pressure to afford the title compound (1) (800 mg, 1.62 mmol, 69%), positive ion ESI (M+H)+ 494.6.

1. waitThis was left
2. additionwas added
3. stirringThe resulting mixture was then shaken
4. washthe organic layer was washed with water (40 cm3), saturated aqueous sodium bicarbonate solution (40 cm3), water again (40 cm3)
5. dry with materialsaturated aqueous sodium chloride solution (50 cm3) before the organic portion was dried over sodium sulfate, It
6. customwas then evaporated under reduced pressure