反应详情

A mixture of 38.7 g of 2-[4-(5-carbamoyl-3-indolyl)butyl]-1,2,3,4-tetrahydrobenzofuro[2,3-c]pyridine, 27.1 g of NaOH, 525 ml of water and 450 ml of diethylene glycol monoethyl ether is boiled, with stirring, for 16 hours. The mixture is cooled, the usual working up followed by acidification is carried out, and 2-[4-(5-carboxy-3-indolyl)butyl]-1,2,3,4-tetrahydrobenzofuro[2,3-c]pyridine is obtained.

1. temperatureThe mixture is cooled