Acetic acid (3S,6S)-3-azido-6-[(2,4-dinitro-phenylamino)-methyl]-tetrahydro-pyran-2-yl ester 、 (3aR,4S,6S,7R,7aR)-6-azido-7-hydroxy-4-methoxy-3-methyl-3a,4,5,6,7,7a-hexahydro-1,3-benzoxazol-2-one 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以48%的产率得到4-azido-3-O-<2'-azido-2',3',4',6'-tetradeoxy-6'-(2,4-dinitrophenylamino)-α-D-threo-hexopyranosyl>-1-N,2-O-carbonyl-1,4,5-trideoxy-6-O-methyl-1-(methylamino)-L-chiro-inositol