(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