[(1S,2R,11S,14S,15S,18Z,24S)-15-hydroxy-14-methyl-22-oxo-7-pentacyclo[12.11.0.02,11.05,10.015,24]pentacosa-5(10),6,8,18-tetraen-16,20-diynyl] methanesulfonate 在
甲基磺酰氯 、
三乙胺 作用下,
以
丙酮 为溶剂,
以10%的产率得到[(1S,2R,11S,14S,15S,24S)-15-hydroxy-14-methyl-22-oxo-7-hexacyclo[12.11.0.02,11.05,10.015,24.016,21]pentacosa-5(10),6,8,16,18,20-hexaenyl] methanesulfonate