反应详情

A solution of 2-(1-(4-chlorobenzyl)-1H-indol-3-yl)-2-oxo-acetyl chloride (0.45 g) and 4-amino-5H-furan-2-one (0.30 g) in dry tetrahydrofuran (10 ml) is refluxed for 2 h. After cooling at room temperature, the reaction mixture is poured into water (200 ml) and the resulting suspension is left under stirring for 1 h. The solid is filtered off and resuspended in methanol (4.3 ml) under stirring for 1 h, then collected by filtration to give N-(5-oxo-2,5-dihydrofuran-3-yl)-2-(1-(4-chlorobenzyl)-1H-indol-3-yl)-2-oxo-acetamide (0.27 g).

1. waitthe resulting suspension is left
2. filtrationThe solid is filtered off
3. stirringunder stirring for 1 h
4. filtrationcollected by filtration