methyl 3-O-tert-butyldimethylsilyl-2,4,6-trideoxy-2-fluoro-4-(trifluoroacetylamino)-α-L-mannopyranoside 、
苯甲酸酐 、
苯甲酸 、
硫酸 以to obtain 1,3-di-O-benzoyl-2,4,6-trideoxy-2-fluoro-4-(trifluoroacetylamino)-L-mannopyranose的产率得到1,3-di-O-benzoyl-2,4,6-trideoxy-2-fluoro-4-(trifluoroacetylamino)-L-mannopyranose