Concise synthesis of two pentasaccharides corresponding to the α-chain oligosaccharides of Neisseria gonorrhoeae and Neisseria meningitidis
作者:Pintu Kumar Mandal、Anup Kumar Misra
DOI:10.1016/j.tet.2008.07.004
日期:2008.9
Two pentasaccharides containing a common tetrasaccharide (lacto-N-neotetraose) core, and D-galactosamine and N-acetyl neuraminic acid in the non-reducing ends, respectively, corresponding to the lipooligosaccharides of Neisseria gonorrhoeae and Neisseria meningitidis were synthesized in a very concise manner from a common trisaccharide derivative using minimum number of steps. Thioglycosides and glycosyl trichloroacetimidate have been used as glycosyl donors for glycosylations and yields were excellent in every step. (c) 2008 Elsevier Ltd. All rights reserved.