3-amino-N-(4-methylphenyl)-4-phenyl-6,7-dihydro-5H-cyclopenta[b]thieno[3,2-e]pyridine-2-carboxamide                                                                                                                                                              在
                                                                                                                                                                                 
硫酸   、                                                                                                  
溶剂黄146   、                                                                                                  sodium nitrite                                                                                                                                  作用下,
                                                                                                                                                                                                                            以83%的产率得到5-(4-methylphenyl)-16-phenyl-8-thia-3,4,5,10-tetrazatetracyclo[7.7.0.02,7.011,15]hexadeca-1(16),2(7),3,9,11(15)-pentaen-6-one