(E)-7-[1-Ethyl-4-(4-fluoro-phenyl)-6-isopropyl-1H-pyrazolo[3,4-b]pyridin-5-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-[1-Ethyl-4-(4-fluoro-phenyl)-6-isopropyl-1H-pyrazolo[3,4-b]pyridin-5-yl]-3,5-dihydroxy-hept-6-enoic acid ethyl ester