Tetrahydrofuran → HCID 12150401, compound

Participants

Reaction Conditions

Reaction Steps

2.50 g of 2-chloro-6,7-dimethoxy-4-(3-nitrophenyl)quinazoline obtained in Production Example 1,4.89 g methylamine hydrochloride and 11.0 g triethylamine were suspended in 25 ml 1-methyl-2-pyrrolidinone and stirred at 130° C. for 18 hours in a sealed tube. Ethyl acetate and tetrahydrofuran were added thereto, and the reaction solution was washed with water 5 times and then with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the crude product was purified and separated by silica gel column chromatography (hexane:ethyl acetate=1:2). The product was recrystallized from tetrahydrofuran-ethyl acetate to give 1.89 g of the title compound as yellow crystals.

Provenance & Evidence