Synthesis of the tetrasaccharide repeating unit of the O-specific polysaccharide of Azospirillum doebereinerae type strain GSF71^T using linear and one-pot iterative glycosylations

• Arin Gucchait,
• Pradip Shit and
• Anup Kumar Misra

Beilstein J. Org. Chem. 2020, 16, 1700–1705, doi:10.3762/bjoc.16.141

• the O-specific polysaccharide of Azospirillum doebereinerae type strain GSF71T in a very good yield adopting sequential glycosylation followed by removal of the p-methoxybenzyl (PMB) group in the same pot. Further, the synthetic strategy was modified by carrying out three stereoselective iterative

• glycosyl activator. Keywords: Azospirillum doebereinerae; glycosylation; HClO4-SiO2; O-polysaccharide; tetrasaccharide; Introduction The development of plant-growth-promoting agents has become an attractive area of research in the agricultural sciences to reduce the need for chemical fertilizers, which

• strategies could provide access to large quantities of the oligosaccharides with defined chemical structures and free from biological impurities. Among the nineteen species of Azospirillum, Azospirillum doebereinerae was isolated from the rhizosphere of the biomass producing plant, Miscanthus giganteus [20