乙酸酐 、 [(2R,3S,4R,5R,6R)-5-Acetylamino-3,4-dihydroxy-6-((1R,2R)-1,2,3-trihydroxy-propyl)-tetrahydro-pyran-2-yl]-phosphonic acid dimethyl ester 在
吡啶 作用下,
生成
dimethyl (4-acetamido-2,3,6,7,8-penta-O-acetyl-4-deoxy-α-D-erythro-L-gluco-octopyranosyl)phosphonate