7-bromo-1,3,4,11a-tetrahydro-2H10H-2,4a,10-triazadibenzo[a,d]cycloheptene-5,11-dione 、
3,3-二甲基-1-丁酸 、
1-羟基苯并三唑一水物 以
N,N-二甲基甲酰胺 为溶剂,
以give the desired product 15 (230 mg, 66% yield, 75% content) as pink amorphous solid, which的产率得到7-bromo-2-(3,3-dimethylbutyryl)-1.3.4,11a-tetrahydro-2H,10H-2,4a,10-triazadibenzo[a,d]cycloheptene-5,11-dione