8-ethyl-6-ethynyl-4,4-dimethyl-3,4-dihydro-2H-naplthalen-1-one   、                                                                                      2-{4-[(8-cyclopropyl-3,4-dihydro-4,4-dimethylspiro[2H-1-benzopyran-2,1'-cyclopropane]-6-yl)ethynyl]-phenyl}-2-methyl-propionic acid methyl ester   、                                                                                      
三乙胺   、                                                                                      
乙酸乙酯                                                                                                                                                              在
                                                                                                                                         
碘化亚铜   、                                                                                                  
双三苯基磷二氯化钯                                                                                                                                                                          作用下,
                                                                                                                以
                                                                                         
正己烷                                                                                  为溶剂,
                                                                                                                                                                                        以the title compound was obtained as an oil (0.095 g, 59%)的产率得到2-[4-(4-ethyl-8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalen-2-ylethynyl)-phenyl]-2-methyl-propionic acid methyl ester