4-苯基-1,2,4-三唑啉-3,5-二酮 、
2-Amino-6,7-dihydro-1-(4-methylphenylsulfonyl)-1H-azepin-3,5-dicarbonsaeure-dimethylester 以
氯仿 为溶剂,
以96%的产率得到8-Amino-2,3,5,6,7,9a-hexahydro-7-(4-methylphenylsulfonyl)1,3-dioxo-2-phenyl-1H,4aH-<1,2,4>triazolo<1',2':1,2>diazet<3,4-d>azepin-4a,9-dicarbonsaeure-dimethylester