反应详情

To a stirred solution of 0.445 g of 3-methylbenzo[b]thiophene-2-acetyl chloride in 5 ml of methylene chloride is added 0.346 g of triethylamine at 0° C. After stirring for 3 minutes, 0.500 g of 10,11-dihydro-10-(4-aminobenzoyl)-5H-pyrrolo[2,1-c][1,4]benzodiazepine is added and stirring continued for 72 hours at room temperature. An additional 0.445 g of 3-methylbenzo[b]thiophene-2-acetyl chloride, 0.346 g of triethylamine and 30 mg of dimethylaminopyridine is added and stirring continued for an additional 18 hours. The reaction mixture is diluted with 45 ml of methylene chloride and washed with water, 2N citric acid, 1M NaHCO3, and brine. The reaction mixture is dried with Na2SO4, filtered and evaporated in vacuo to give a solid-which is purified by flash chromatography using 1:1 ethyl acetate-hexane to give 0.320 g of the desired product as a yellow foam.

1. stirringstirring
2. waitcontinued for 72 hours at room temperature
3. stirringstirring
4. waitcontinued for an additional 18 hours
5. washwashed with water, 2N citric acid, 1M NaHCO3, and brine
6. dry with materialThe reaction mixture is dried with Na2SO4
7. filtrationfiltered
8. customevaporated in vacuo
9. customto give a solid-which
10. customis purified by flash chromatography