4-[(2-hydroxyphenyl)-(3-methyl-1-phenyl-5-sulfanylidene-4H-pyrazol-4-yl)methyl]-5-methyl-2-phenyl-4H-pyrazol-3-one                                                                                                                                                              在
                                                                                                                                                                                 
碘   、                                                                                                  potassium iodide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
sodium hydroxide                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以45%的产率得到11-(2-hydroxyphenyl)-1,10-dimethyl-3,8-diphenyl-7-sulfanylidene-2,3,8,9-tetrazadispiro[4.0.46.15]undeca-1,9-dien-4-one