(2R,4aR,6R,8aS)-2-<(1S,4S)-4-<(2R,5R)-5-(1-Acetoxy-1-methylethyl)tetrahydro-2-methylfuran-2-yl>-1,4-bis(methoxymethoxy)-1-methylbutyl>octahydro-6-<(S)-1-(methoxymethoxy)-1,5-dimethylhex-4-enyl>-8a-methylpyrano<3,2-b>pyran 在
盐酸 作用下,
以
甲醇 为溶剂,
以74%的产率得到Acetic acid 1-((2R,5R)-5-{(1S,4S)-1,4-dihydroxy-4-[(2R,4aR,6R,8aS)-6-((S)-1-hydroxy-1,5-dimethyl-hex-4-enyl)-8a-methyl-octahydro-pyrano[3,2-b]pyran-2-yl]-pentyl}-5-methyl-tetrahydro-furan-2-yl)-1-methyl-ethyl ester