(1S,4aR,7S,7aR)-4a-Acetoxy-7-acetoxymethyl-5-oxo-1-((2S,3R,4S,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-1,4a,5,6,7,7a-hexahydro-cyclopenta[c]pyran-4-carboxylic acid methyl ester 在
sodium tetrahydroborate 作用下,
以
1,4-二氧六环 、
水 为溶剂,
反应 0.75h,
以61 mg的产率得到(1S,4aR,5R,7S,7aR)-5-Acetoxy-7-acetoxymethyl-4a-hydroxy-1-((2S,3R,4S,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-1,4a,5,6,7,7a-hexahydro-cyclopenta[c]pyran-4-carboxylic acid methyl ester