potassium acetate 、
benzyl 4,6-di-O-acetyl-2,3-dideoxy-α-D-erythro-hex-2-enpyranoside 在
manganese(III) triacetate dihydrate 、
乙酸酐 、
溶剂黄146 作用下,
以73%的产率得到[(3aR,4S,6R,7S,7aS)-7-acetyloxy-2-oxo-4-phenylmethoxy-3,3a,4,6,7,7a-hexahydrofuro[3,2-c]pyran-6-yl]methyl acetate