[4-(3-aminophenyl)-6,7-dimethoxyquinazolin-2-yl]methylamine with a favorable yield and high purity can be produced by subjecting a compound represented by the following formula (I) to a step of reacting with methylamine and a step of deprotection if desired:
wherein L represents a protective group of amino.
[4-(3-aminophenyl)-6,7-dimethoxyquinazolin-2-yl]methylamine with a favorable yield and high purity can be produced by subjecting a compound represented by the following formula (I) to a step of reacting with methylamine and a step of deprotection if desired:
wherein L represents a protective group of amino.