2-[(2-methyl-4-oxo-4H-chromen-8-yl)methylene]-1-phenylbutane-1,3-dione   、                                                                                      cyclobutyl 3-aminobut-2-enoate                                                                                                                                                              在
                                                                                                                                                                                 
氩   、                                                                                                  
乙酸乙酯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 24.0h,
                                                                                                                以result in 206 mg (43% of theory) of the title compound as a yellow solid的产率得到Cyclobutyl 5-benzoyl-2,6-dimethyl-4-(2-methyl-4-oxo-4H-chromen-8-yl)-1,4-dihydropyridine-3-carboxylate