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Title: Synthesis of (R)-4,6-O-pyruvated trisaccharide related to the repeating unit of the antigen from Shigella dysenteriae type 9 in the form of its 2-(trimethylsilyl)ethyl glycoside
Authors: Roy, Samarpita
Sarkar, Sujit Kumar
Roy, Nirmolendu
Issue Date: Jan-2005
Publisher: CSIR
IPC Code: Int.Cl.7 C 07 H 3/06
Abstract: Starting from D-galactose, and D-mannose a trisaccharide namely 2-(trimethylsilyl)ethyl-2,3-di-O-benzoyl-4,6-O-[(R)-1-methoxycarbonylethylidene]--D-galactopyranosyl-(1→4)-2, 3, 6-tri-O-benzyl-b-d-mannopyranosyl-(1→4)-2,6-di-O-ben­zyl-3-O-(4-methoxybenzyl)--D-galactopyranoside has been synthesized. Deprotection of the blocking functionality affords a deblocked trisaccharide, 2-(trimethylsilyl)ethyl-4,6-O-[(R)-1-methoxycarbonylethylidene]--D-galactopyranosyl-(1→4)--D-mannopyranosyl-(1→4)--D-galactopyranoside which is a part of the repeating unit of the O-antigen from Shigella dysenteriae type 9.
Page(s): 137-140
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.44B(01) [January 2005]

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