(1S,2R,11S,14S,15S,18S,24S)-7,15,18-trihydroxy-14-methylpentacyclo[12.11.0.02,11.05,10.015,24]pentacosa-5(10),6,8-trien-16,20-diyn-22-one 在
甲基磺酰氯 、
三乙胺 作用下,
以
丙酮 为溶剂,
生成 [(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