4-((2-methyl-2-(1-methyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)hydrazineylidene)methyl)benzoic acid 在
溶剂黄146 、 sodium nitrite 作用下,
以
水 为溶剂,
反应 18.0h,
以86%的产率得到4-(1,6-Dimethyl-5,7-dioxo-1,5,6,7-tetrahydropyrimido[5,4-e][1,2,4]triazin-3-yl)benzoic acid