(2S,3R)-2-[(2S,3R)-4-Benzyloxy-2-(4-benzyloxycarbonyl-butyrylamino)-3-hydroxy-butyrylamino]-3-((2R,3S,4R,5R,6S)-3,4,5-tris-benzyloxy-6-methyl-tetrahydro-pyran-2-yloxy)-butyric acid ethyl ester 在
palladium dihydroxide 氢气 作用下,
以
甲醇 为溶剂,
反应 24.0h,
以54%的产率得到5-[[(2S,3R)-1-[[(2S,3R)-1-ethoxy-1-oxo-3-[(2R,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxybutan-2-yl]amino]-3,4-dihydroxy-1-oxobutan-2-yl]amino]-5-oxopentanoic acid