18-(4-Nitrophenyl)sulfonyl-5lambda6-thia-18-azatricyclo[23.4.0.09,14]nonacosa-1(29),9,11,13,25,27-hexaen-2,7,15,23-tetrayne 5,5-dioxide 在
三乙胺 作用下,
以73%的产率得到11-(4-Nitrophenyl)sulfonyl-27lambda6-thia-11-azapentacyclo[20.7.0.02,7.018,23.025,29]nonacosa-1(29),2,4,6,18(23),19,21,24-octaen-8,16-diyne 27,27-dioxide