Hydrochloric Acid → HCID 66877193, compound

Participants

Reaction Steps

To a solution of (S)-tert-butyl 3-(4-(3-(3-(5-tert-butylisoxazole-3-yl)ureido)phenoxy)-7-methoxyquinazolin-6-yloxy)pyrrolidine-1-carboxylate (300 mg, ˜0.40 mmol), a 4N solution of HCl in dioxane (1 ml, 4 mmol) was added. The reaction mixture was stirred at room temperature overnight. The resulting solid was filtered and washed with plenty of ethyl ether to yield (S)-1-(5-tert-butylisoxazol-3-yl)-3-(3-(7-methoxy-6-(pyrrolidin-3-yloxy)quinazolin-4-yloxy)phenyl)urea dihydrochloride (215 mg, 91%). LC-MS (ESI) m/z 519 (M+H)+.

Provenance & Evidence