反应详情

To a suspension of commercially available 2-(1-Methyl-1H-indol-3-yl)-acetamide (54 mg, 0.28 mmol) and benzofuran-3-yl-oxo-acetic acid ethyl ester (63 mg, 0.28 mmol) in dry THF (2.5 mL) at 0° C. was added dropwise a 1.0 M solution of tert-BuOK in THF (1.15 mL), and the reaction mixture was allowed to stir at room temperature overnight. The reaction mixture was quenched with 12 N HCl and diluted with EtOAc. The organic solution was washed with saturated NaHCO3, brine, then dried over Na2SO4, evaporated in vacuo and purified by preparative TLC (ethyl acetate:hexane; 2:3) to afford product 3-benzofuran-3-yl-4-(1-methyl-1H-indol-3-yl)-pyrrole-2,5-dione (1) (44 mg, 44%) as an orange solid.

1. customThe reaction mixture was quenched with 12 N HCl
2. additiondiluted with EtOAc
3. washThe organic solution was washed with saturated NaHCO3, brine
4. dry with materialdried over Na2SO4
5. customevaporated in vacuo
6. custompurified by preparative TLC (ethyl acetate:hexane; 2:3)