(2S,3Z)-5-{[(2R,3R,5S,6S)-6-{(2E,4E)-5-[(3R,4R,5R,7S)-7-(2-amino-2-oxoethyl)-4-hydroxy-1,6-dioxaspiro[2.5]oct-5-yl]-3-methylpenta-2,4-dien-1-yl}-2,5-dimethyltetrahydro-2H-pyran-3-yl]amino}-5-oxopent-3-en-2-yl acetate 在
2,6-二甲基吡啶 、
水 、 lithium hydroxide 作用下,
以
四氢呋喃 、
二氯甲烷 为溶剂,
反应 22.17h,
生成
(2Z,4S)-N-[(2R,3R,5S,6S)-6-{(2E,4E)-5-[(3R,4R,5R,7S)-7-(2-amino-2-oxoethyl)-4-{[tert-butyl(dimethyl)silyl]oxy}-1,6-dioxaspiro[2.5]oct-5-yl]-3-methylpenta-2,4-dien-1-yl}-2,5-dimethyltetrahydro-2H-pyran-3-yl]-4-hydroxypent-2-enamide