m-maleimidobenzoyl-N-hydroxy-succinimide ester 、
(9Z,12Z)-Octadeca-9,12-dienoic acid (3S,8S,9S,10R,13S,14S,17S)-17-((S)-6-mercapto-1-methoxy-1-methyl-hexyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 生成 (2,5-dioxopyrrolidin-1-yl) 3-[3-[(6S)-6-[(3S,8S,9S,10R,13S,14S,17S)-10,13-dimethyl-3-[(9Z,12Z)-octadeca-9,12-dienoyl]oxy-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]-6-methoxyheptyl]sulfanyl-2,5-dioxopyrrolidin-1-yl]benzoate