乙酸酐 、
Acetic acid (2R,3S,4R,5R,6R)-4,5-diacetoxy-6-acetoxymethyl-2-((3R,4R,5S,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-2-oxo-tetrahydro-pyran-3-ylmethyl)-tetrahydro-pyran-3-yl ester 在
Natrium-ethoxy-bis(2-methoxyethoxy)hydridoaluminat 作用下,
生成 、 [(2R,3R,4R,5S,6R)-3,4,5-triacetyloxy-6-[[(2S,3R,4R,5S,6R)-2-acetyloxy-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-3-yl]methyl]oxan-2-yl]methyl acetate