反应详情

To a solution of 3-amino-1-(4-methylpyridin-2-yl)pyrrolidine (177 mg) and N-(tert-butoxycarbonyl)-N′-ethylthiourea (245 mg) in N,N-dimethylformamide (5 ml) was added 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride (230 mg), and the mixture was stirred for 18 hours. The mixture was diluted with ethyl acetate, washed with water three times and brine, dried over sodium sulfate and evaporated under reduced pressure. The residue was purified by column chromatography (silica gel 25 g, 5% methanol in dichloromethane) to give N-(tert-butoxycarbonyl)-N′-ethyl-N″-(1-(4-methylpyridin-2-yl)-pyrrolidin-3-yl)guanidine (290 mg).

1. washwashed with water three times and brine
2. dry with materialdried over sodium sulfate
3. customevaporated under reduced pressure
4. customThe residue was purified by column chromatography (silica gel 25 g, 5% methanol in dichloromethane)