phenyl (1R,9S,10S)-9-[(Z)-hex-3-en-1,5-diynyl]-14-oxo-15-oxa-8-azatetracyclo[8.4.1.01,10.02,7]pentadeca-2,4,6-triene-8-carboxylate 、
lithium diisopropyl amide 生成 phenyl (1S,5R,8Z,12S,20S)-5-hydroxy-21-oxa-13-azapentacyclo[10.9.0.01,20.05,20.014,19]henicosa-8,14,16,18-tetraen-6,10-diyne-13-carboxylate