(2S,4S,5S,6R)-5-Acetylamino-4-(tert-butyl-dimethyl-silanyloxy)-6-[(S)-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-pentyloxy-methyl]-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester 在
sodium azide 、 Dowex 50W (H+) 、
硫酸 、
溶剂黄146 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成 (4S,5R,6R,1'S,2'R)-5-acetylamino-4-azido-6-(2',3'-diacetoxy-1'-n-pentyloxy)propyl-5,6-dihydro-4H-pyran-2-carboxylic acid methyl ester