(1S,4aS,5S,6R,7R,7aR)-5-Acetoxy-1-((2S,3R,4S)-3,4-diacetoxy-6-formyl-3,4-dihydro-2H-pyran-2-yloxy)-6-[(E)-3-(4-methoxy-phenyl)-acryloyloxy]-7-methyl-1,4a,5,6,7,7a-hexahydro-cyclopenta[c]pyran-4-carboxylic acid methyl ester 在
sodium tetrahydroborate 、 Amberlite IR 120 作用下,
以
甲醇 为溶剂,
反应 0.75h,
以87%的产率得到(1S,4aS,5S,6R,7R,7aR)-5-Acetoxy-1-((2S,3R,4S)-3,4-diacetoxy-6-hydroxymethyl-3,4-dihydro-2H-pyran-2-yloxy)-6-[(E)-3-(4-methoxy-phenyl)-acryloyloxy]-7-methyl-1,4a,5,6,7,7a-hexahydro-cyclopenta[c]pyran-4-carboxylic acid methyl ester