[(2S,3S,4E,6S,7R,10R)-7,10-dihydroxy-2-[(2E,4E,6R)-6-hydroxy-6-methyl-7-[(2R,3R)-3-[(2S)-3-oxopentan-2-yl]oxiran-2-yl]hepta-2,4-dien-2-yl]-3,7-dimethyl-12-oxo-1-oxacyclododec-4-en-6-yl] 4-cycloheptylpiperazine-1-carboxylate 、
碘甲烷 以
二氯甲烷 为溶剂,
生成 [(2S,3S,4E,6S,7R,10R)-7,10-dihydroxy-2-[(2E,4E,6R)-6-hydroxy-6-methyl-7-[(2R,3R)-3-[(2S)-3-oxopentan-2-yl]oxiran-2-yl]hepta-2,4-dien-2-yl]-3,7-dimethyl-12-oxo-1-oxacyclododec-4-en-6-yl] 4-cycloheptyl-4-methylpiperazin-4-ium-1-carboxylate;iodide