Benzoic acid (2R,3R,4S,5R,6R)-2-[(2R,3S,4R,5R,6R)-3-acetoxy-6-allyloxy-2-benzyloxymethyl-5-(2,2,2-trichloro-acetylamino)-tetrahydro-pyran-4-yloxy]-4-benzyloxy-6-(4-methoxy-benzyloxymethyl)-5-(4-oxo-pentanoyloxy)-tetrahydro-pyran-3-yl ester 在
ammonium cerium (IV) nitrate 作用下,
以
水 、
乙腈 为溶剂,
反应 1.0h,
以4.22 g的产率得到allyl (2-O-benzoyl-3-O-benzyl-4-O-levulinoyl-β-D-glucopyranosyl)-(1->3)-4-O-acetyl-6-O-benzyl-2-deoxy-2-trichloroacetamido-β-D-glucopyranoside