(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethyl-2-naphthyl)acetylene   、                                                                                      
N,N-二甲基-4-碘-1H-咪唑-1-磺酰胺   、                                                                                      
(E)-4-[2-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethylnaphthalen-2-yl)propen-1-yl]-1-(N,N-dimethylsulfamoyl)imidazole   、                                                                                         、                                                                                      
正丁基锂   、                                                                                      
氯甲酸乙酯                                                                                                                                                              在
                                                                                                                                                                                 
ethyl (E)-4-[2-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethylnaphthalen-2-yl)propen-1-yl]-1-(N,N-dimethylsulfamoyl)-2-imidazolecarboxylate                                                                                                                                  作用下,
                                                                                                                                                                                                                            以to yield ethyl (E)-4-[2-(5,6,7,8-tetrahydro- 3,5,5,8,8-pentamethylnaphthalen-2-yl)propen-1-yl]-1-(N,N-dimethylsulfamoyl)-2-imidazolecarboxylate (Compound 4)的产率得到ethyl (E)-4-[2-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethylnaphthalen-2-yl)propen-1-yl]-1-(N,N-dimethylsulfamoyl)-2-imidazolecarboxylate