乙酸酐 、
macrocliniside D 以
吡啶 为溶剂,
以40 mg的产率得到Acetic acid (2R,3R,4S,5R,6R)-5-acetoxy-6-acetoxymethyl-4-((2S,3R,4S,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-2-((3aR,6S,9aS)-3,5,8-trimethylene-2-oxo-dodecahydro-azuleno[6,5-b]furan-6-yloxy)-tetrahydro-pyran-3-yl ester