Patent AT-E399779-T1: [Translated] INTERMEDIATE PRODUCTS FOR THE PRODUCTION OF NEURAMINIDASE-INHIBITOR CONJUGATES

Compounds of formula (I), methods for their preparation and their use in the manufacture of neuraminidase inhibitor conjugates. Wherein R represents as carboxylic acid protecting group; P<SUB>1 </SUB>and P<SUB>2 </SUB>can be the same or different and are selected from amine protecting groups; P<SUB>3 </SUB>represents a protecting group for 1, 2 diols; and LG represents a leaving group