Benzoic acid (2R,3S,4R,5R,6S)-2-benzyloxymethyl-5-(3,4-dimethyl-2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-6-[dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-4-(9H-fluoren-9-ylmethoxycarbonyloxy)-tetrahydro-pyran-3-yl ester 在
氟化氢吡啶 作用下,
以
四氢呋喃 为溶剂,
以83%的产率得到Benzoic acid (2R,3S,4R,5R,6R)-2-benzyloxymethyl-5-(3,4-dimethyl-2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-4-(9H-fluoren-9-ylmethoxycarbonyloxy)-6-hydroxy-tetrahydro-pyran-3-yl ester