for the following products
alpha-D-Glucopyranoside methyl O-2-azido-2-deoxy-3,4-bis-O-(phenylmethyl)-a-D-glucopyranosyl-(14)-O-2,3-bis-O-(phenylmethyl)-b-D-glucopyranuronosyl-(14)-O-2-azido-2-deoxy-a-D-glucopyranosyl-(14)-O-3- | Fondaparinux intermediate N-3 | Fondaparinux intermediate N-3? and Fondaparinux sodium N-3
