Zanamivir intermediate

zanamivir intermediate3 ; methyl 7,8,9-tri-o-acetyl-5-(acetylamino)-2,6-anhydro-4-azido-3,4,5-trideoxy-d-glycero-d-galacto-non-2-enonate ; methyl7,8,9-tri-o-acetyl-n-acetyl-2-deoxy-2,3-didehydro-4a-azido-d-neuraminate ; d-glycero-d-galacto-non-2-enonicacid, 5-(acetylamino)-2,6-anhydro-4-azido-3,4,5-trideoxy-, methyl ester,7,8,9-triacetate ; d-glycero-d-galacto-non-2-enonic acid ; zanamivir azide ; zanamivir azide triacetate methyl ester ; (4s,5r,6r)-5-acetylamino-4-azido-6-(1s,2r,3-triacetoxypropyl)-5,6-dihydro-4h-pyran-2-carboxylic acid ; d-glycero-d-galacto-non-2-enonic acid, 5-(acetylamino)-2,6-anhydro-4-azido-3,4,5-trideoxy-, methyl ester, 7,8,9-triacetate ; methyl 5-acetamido-7,8,9-o-triacetyl-2,6-anhydro-4-azido-3,4,5-trideoxy-d-glycero-d-galacto-non-2-enonat ; zanamivir intermediate d4 ; methyl 5-acetamido-7,8,9-o-triacetyl-2,6-anhydro-4-azido-3,4,5-trideoxy-d-glycero-d-galacto-non-2-enonate ; 5-(acetylamino)-2,6-anhydro-4-azido-3,4,5-trideoxy-,methyl ester, 7,8,9-triacetate