Thionyl Chloride → 4-Chloro-6-methoxy-7-(2-(imidazol-1-yl)ethoxy)quinazoline

Participants

Reaction Steps

Using a procedure analogous to the one described for the synthesis of Example 23, 7-(2-(imidazol-1-yl)ethoxy)-6-methoxy-3,4-dihydroquinazoline-4-one (286 mg, 1 mmol) was reacted with thionyl chloride (50 ml) to give 4-chloro-7-(2-(imidazol-1-yl)ethoxy)-6-methoxyquinazoline which was then reacted with 5,7-diaza-6-methyloxindole (440 mg, 3 mmol) and sodium hydride (120 mg, 3 mmol) to give 4-(5,7-diaza-6-methyloxindol-3-yl)-7-(2-(imidazol-1-yl)ethoxy)-6-methoxyquinazoline hydrochloride (80 mg, 15%).

Provenance & Evidence