2-[(3S,4S,5S,8S,9S,10S,11R,13R,14S,16S)-16-Acetylsulfanyl-3-azido-11-hydroxy-4,8,10,14-tetramethyl-hexadecahydro-cyclopenta[a]phenanthren-(17Z)-ylidene]-6-methyl-heptanoic acid acetoxymethyl ester 在
potassium carbonate 作用下,
生成 2-[(3S,4S,5S,8S,9S,10S,11R,13R,14S,16S)-16-Acetylsulfanyl-3-azido-11-hydroxy-4,8,10,14-tetramethyl-hexadecahydro-cyclopenta[a]phenanthren-(17Z)-ylidene]-6-methyl-heptanoic acid