Methyl (1-adamantanyl 5-acetamido-7,8,9-tri-O-acetyl-5-N,4-O-carbonyl-3,5-dideoxy-2-thio-D-glycero-a-D-galacto-non-2-ulopyranoside) onate

for the following products 5-Acetamido-7,8,9-tri-O-acetyl-5-N,4-O-carbonyl-2-S-adamantanyl-2-thio-alpha-neuraminic acid methyl ester and Methyl (1-adamantanyl 5-acetamido-7,8,9-tri-O-acetyl-5-N,4-O-carbonyl-3,5-dideoxy-2-thio-D-glycero-a-D-galacto-non-2-ulopyranoside) onate