Hydrochloric Acid → HCID 21717207, compound

Participants

Reaction Conditions

Reaction Steps

2M Hydrochloric acid (1.5 ml, 3 mmol) was added to a solution of 4-(1-diethoxymethyloxindol-3-yl)-6-methoxy-7-(3-(pyrrolidin-1-yl)propoxy)quinazoline (151 mg, 0.29 mmol), (prepared as described in Example 24), in ethanol (15 ml) at 80° C. and the mixture was stirred at 80° C. for 1.5 hours. The reaction mixture was allowed to cool, the solvent was removed by evaporation and the residue was purified by reverse phase C18 chromatography eluting with a gradient of acetonitrile in water (0-40%). The acetonitrile was removed by evaporation from the fractions containing product and concentrated hydrochloric acid (0.1 ml) was added to the aqueous phase. The solution was freeze dried to give 6-methoxy4-(oxindol-3-yl)-7-(3-(pyrrolidin-1-yl)propoxy)quinazoline hydrochloride (150 mg, 100%).

Provenance & Evidence