methyl 2-tert-butoxy-2-(7-chloro-5-methyl-3-phenylpyrazolo[1,5-a]pyrimidin-6-yl)acetate 在
四(三苯基膦)钯 potassium phosphate 、
水 、 lithium hydroxide 作用下,
以
1,4-二氧六环 为溶剂,
反应 2.5h,
生成 2-tert-butoxy-2-(7-(8-fluoro-5-methylchroman-6-yl)-5-methyl-3-phenylpyrazolo[1,5-a]pyrimidin-6-yl)acetic acid trifluoroacetate