呋喃丙烯酸酐 、
(1S,4aS,7R,7aS)-7-Methyl-6-oxo-1-((2S,3R,4S,5R,6R)-3,4,5-triacetoxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-1,4a,5,6,7,7a-hexahydro-cyclopenta[c]pyran-4-carboxylic acid methyl ester 在
吡啶 、
4-二甲氨基吡啶 作用下,
以
二氯甲烷 为溶剂,
以89.2%的产率得到(1S,4aS,7R,7aS)-7-Methyl-6-oxo-1-[(2S,3R,4S,5R,6R)-3,4,5-triacetoxy-6-((E)-3-furan-2-yl-acryloyloxymethyl)-tetrahydro-pyran-2-yloxy]-1,4a,5,6,7,7a-hexahydro-cyclopenta[c]pyran-4-carboxylic acid methyl ester