Benzoic acid (3S,3aR,4R,7aS)-3-hydroxy-6-methyl-7-oxo-2,3,3a,4,7,7a-hexahydro-benzofuran-4-ylmethyl ester                                                                                                                                                              在
                                                                                                                                                                                 sodium tetrahydroborate   、                                                                                                  cerium(III) chloride   、                                                                                                  
三乙胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 Benzoic acid (3S,3aS,4R,7R,7aS)-7-hydroxy-6-methyl-3-triethylsilanyloxy-2,3,3a,4,7,7a-hexahydro-benzofuran-4-ylmethyl ester