Hydrochloric Acid → 6-Methoxy-7-(2-(pyrrolidin-1-yl)ethoxy)-3,4-dihydroquinazolin-4-one

Participants

Reaction Conditions

Reaction Steps

A mixture of 6-methoxy-4-phenoxy-7-(2-(pyrrolidin-1-yl)ethoxy)quinazoline (565 mg, 1.55 mmol) and 2M hydrochloric acid (5 ml) was heated at 90° C. for 90 minutes and allowed to cool. The solution was neutralised with aqueous sodium hydrogen carbonate, and the water removed by evaporation. The residue was purified by column chromatography eluting with methylene chloride/methanol/ammonia (100/8/1) to give 6-methoxy-7-(2-(pyrrolidin-1-yl)ethoxy)-3,4-dihydroquinazolin-4-one (440 mg, 98%yield). This material was used without further characterisation.

Provenance & Evidence