methyl 2-[[(2S,5R)-2,6-bis[(2-methylpropan-2-yl)oxycarbonylamino]-5-[(2R,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyhexanoyl]amino]acetate 在
lithium hydroxide 作用下,
以
四氢呋喃 、
水 为溶剂,
反应 17.0h,
以51%的产率得到[(2S,5R)-2,6-Bis-tert-butoxycarbonylamino-5-((2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-hexanoylamino]-acetic acid