(2S,3S,4S,5R,6S)-3-[(2S,4aR,6R,7R,8R,8aR)-7-Azido-8-(4-oxo-pentanoyloxy)-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy]-6-(4-methoxy-phenoxy)-4,5-bis-(4-methyl-benzoyloxy)-tetrahydro-pyran-2-carboxylic acid methyl ester 在
ammonium cerium(IV) nitrate 作用下,
以
乙腈 为溶剂,
反应 2.0h,
以94%的产率得到(2S,3S,4S,5R,6S)-3-[(2S,4aR,6R,7R,8R,8aR)-7-Azido-8-(4-oxo-pentanoyloxy)-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy]-6-hydroxy-4,5-bis-(4-methyl-benzoyloxy)-tetrahydro-pyran-2-carboxylic acid methyl ester