4,5,6,7-Tetrahydro-2-[(3-thienylcarbonyl)amino]benzo[b]thiophene-3-carboxylic acid   、                                                                                      
二乙胺                                                                                                                                                              在
                                                                                                                                                                                 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 
3-N,3-N-diethyl-2-N-(thiophene-3-)-4,5,6,7-tetrahydro-1-benzothiophene-2,3-diamido