2-氨基-6,7-二甲氧基喹唑啉-4-醇

6,7-dimethoxy-2-(methylamino)-1H-quinazolin-4-one

2-amino-4,5-dimethoxybenzohydrazide

6,7-dimethoxy-2-(trifluoromethyl)-3,1-benzoxazin-4-one

6,7-dimethoxy-1-methyl-3,1-benzoxazine-2,4-dione