Benzenesulfonamide,N-(1-butyl-1-formylpentyl)-4-(dimethylamino)-2-[(4-hydroxyphenyl)methyl]-N-methyl-                                                                                                                                                              在
                                                                                                                                                                                 
potassium tert-butylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (8R,9R)-7,7-Dibutyl-2-dimethylamino-9-(4-hydroxy-phenyl)-6-methyl-5,5-dioxo-6,7,8,9-tetrahydro-5H-5λ
6-thia-6-aza-benzocyclohepten-8-ol