4-(3-dimethylsulfamoyl-phenyl)-8-(4-fluoro-3-hydroxy-phenyl)-7-pyridin-4-yl-pyrazolo[5,1-c][1,2,4]triazine-3-carboxylic acid 在
3-[8-(4-fluoro-3-hydroxyphenyl)-7-pyridin-4-ylpyrazolo[5,1-c][1,2,4]triazin-4-yl]-N,N-dimethylbenzenesulfonamide 、 crude product 、 silica gel 、
甲醇 、
二氯甲烷 作用下,
以
二苯醚-联苯共晶 为溶剂,
反应 0.05h,
以with reverse phase HPLC to yield 23 mg of 3-[8-(4-fluoro-3-hydroxyphenyl)-7-pyridin-4-ylpyrazolo[5,1-c][1,2,4]triazin-4-yl]-N,N-dimethylbenzenesulfonamide (trifluoroacetate salt) as a yellow solid的产率得到3-[8-(4-fluoro-3-hydroxyphenyl)-7-pyridin-4-ylpyrazolo[5,1-c][1,2,4]triazin-4-yl]-N,N-dimethylbenzenesulfonamide