Total Synthesis of an Immunomodulatory Phosphoglycolipid from Thermophilic Bacteria
作者:Hong-Jyune Lin、Avijit Kumar Adak、L. Vijaya Raghava Reddy、Shih-Hsiung Wu、Chun-Cheng Lin
DOI:10.1002/chem.201204550
日期:2013.6.10
A method for the stereocontrolled synthesis of a bacterial phosphoglycolipid (PGL1) isolated fromthermophilicbacteria is described. The key features of the synthesis include a highly α‐selective glycosylation reaction between a trichloroacetimidate donor and a D‐lyxose‐derived primary alcohol acceptor and the late‐stage incorporation of the phospholipid.
Stereoselectivity investigation on glycosylation of oxazolidinone protected 2-amino-2-deoxy-d-glucose donors based on pre-activation protocol
作者:Yiqun Geng、Li-He Zhang、Xin-Shan Ye
DOI:10.1016/j.tet.2008.03.103
日期:2008.5
Diverse 2,3-oxazolidinone protected 2-amino-2-deoxy-d-glucose thioglycosides were prepared and studied as glycosyl donors at low temperature by BSM/Tf2O pre-activation protocol before the addition of glycosyl acceptors. The stereochemistry outcomes of a series of glycosylations were investigated. Different stereoselectivities of the coupling reactions were obtained, arising from the different protecting