for the following products
Fondaparinux sodium intermediate C and Methyl O-2-azido-2-deoxy-3,4-bis-O-(phenylmethyl)-alpha-D-glucopyranosyl-(1¨4)-O-2,3-bis-O-(phenylmethyl)-beta-D-glucopyranuronosyl-(1¨4)-O-2-azido-2-deoxy-alpha-D-glucopyranosyl-(1¨