(1S,3R,4R,5S,6S,7R,18R,20S,21S,22R)-4,5,6,22-Tetrakis-benzyloxy-21-((2R,3R,5R,6R)-3,5-bis-benzyloxy-6-methyl-tetrahydro-pyran-2-yloxy)-20-methoxy-2,9,16,19,23-pentaoxa-tricyclo[16.2.2.13,7]tricosane 在
palladium on activated charcoal
氢气 作用下,
以
溶剂黄146 为溶剂,
以90%的产率得到(1S,3R,4R,5S,6R,7R,18R,20S,21S,22R)-21-((2R,3R,5R,6R)-3,5-Dihydroxy-6-methyl-tetrahydro-pyran-2-yloxy)-20-methoxy-2,9,16,19,23-pentaoxa-tricyclo[16.2.2.1
3,7]tricosane-4,5,6,22-tetraol