3-oxo-1,2,4-triphenyl-1,2,3,4,5,8-hexahydro-5,8-epioxido-1,4-episulfano-isoquinoline-4a,8a-dicarboxylic acid dimethyl ester 、
间氯过氧苯甲酸 生成 dimethyl 5,12-dioxo-3,4,6-triphenyl-11-oxa-12λ4-thia-4-azatetracyclo[6.2.1.13,6.02,7]dodec-9-ene-2,7-dicarboxylate