(3-methoxy-2-(methoxycarbonyl)phenyl)methanide   、                                                                                      
methyl (9S,10S,12R)-12-(3-methoxy-3-oxoprop-1-en-2-yl)-9,10-dihydro-9,10-ethanoanthracene-12-carboxylate                                                                                                                                                                                              以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        以71%的产率得到methyl (9S,10S,12R)-12-(8-methoxy-2-(methoxycarbonyl)-1-oxo-1,2,3,4-tetrahydronaphthalen-2-yl)-9,10-dihydro-9,10-ethanoanthracene-12-carboxylate