N-(2,4-dioxo-6-[1,2,4]triazol-4-yl-7-trifluoromethyl-1,4-dihydro-2H-quinazolin-3-yl)-methanesulfonamide 、
异戊酰氯 在
crude product 、 silica gel 、 cyclohexane, ethyl acetate 、
乙酸乙酯 作用下,
以
吡啶 为溶剂,
反应 0.25h,
以to yield N-(2,4-dioxo-6-[1,2,4]triazol-4-yl-7-trifluoromethyl-1,4-dihydro-2H-quinazolin-3-yl)-N-(3-methyl-butyryl)-methanesulfonamide的产率得到N-(2,4-dioxo-6-[1,2,4]triazol-4-yl-7-trifluoromethyl-1,4-dihydro-2H-quinazolin-3-yl)-N-(3-methyl-butyryl)-methanesulfonamide