(E)-7-[7-(4-Fluoro-phenyl)-5-isopropyl-2-methyl-pyrazolo[1,5-a]pyrimidin-6-yl]-5-hydroxy-3-oxo-hept-6-enoic acid ethyl ester 在
sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
生成 (E)-(3S,5R)-7-[7-(4-Fluoro-phenyl)-5-isopropyl-2-methyl-pyrazolo[1,5-a]pyrimidin-6-yl]-3,5-dihydroxy-hept-6-enoic acid ethyl ester