2-(4-{2-[1-cyclopentyl-3-hydroxy-4-(6-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-ylmethyl)-5-oxo-cyclohex-3-enyl]-ethyl}-2-fluoro-5-methoxy-phenyl)-2-methyl-propionitrile 在
三溴化硼 作用下,
以
二氯甲烷 为溶剂,
反应 3.0h,
以15%的产率得到2-[4-(2-{2-cyclopentyl-4-hydroxy-5-[(6-methyl[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]-6-oxo-3,6-dihydro-2H-pyran-2-yl}ethyl)-2-fluoro-5-hydroxyphenyl]-2-methylpropanenitrile