methyl (1R,2R,3S,3aR,8bS)-1,6,8b-trihydroxy-8-methoxy-3a-(4-methylphenyl)-3-phenyl-2,3-dihydro-1H-cyclopenta[b][1]benzofuran-2-carboxylate   、                                                                                      
三甲基硅烷化重氮甲烷                                                                                                                                                                                              以
                                                                                         
甲醇   、                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 4.0h,
                                                                                                                以7 mg的产率得到(1R,2R,3S,3aR,8bS)-methyl 1,8b-dihydroxy-6,8-dimethoxy-3-phenyl-3a-p-tolyl-2,3,3a,8b-tetrahydro-1H-benzo[b]cyclopenta[d]furan-2-carboxylate