Synthesis of glycosides of α-d-mannopyranose 6-(α-d-glucopyranosyl phosphate). The putative ligatin receptor
摘要:
p-Nitrophenyl alpha-D-mannopyranoside 6-(alpha-D-glucopyranosyl phosphate) (7) and 6-(alpha-D-galactopyranosyl phosphate) (8) were synthesized by condensation of the appropriate peracetylated glycosyl phosphate with p-nitrophenyl 2,3,4-tri-O-benzoyl-alpha-D-mannopyranoside followed by alkaline deprotection. 1H-, 31P-, and 13C-n.m.r. spectroscopy were used to establish the structures of 7 and 8, and to examine the conformational preferences about the phosphoric diester linkage.
Biosynthesis of a d-glucosyl polyisoprenyl diphosphate in particulate preparations of Micrococcus lysodeikticus
作者:Tatsumi Yamazaki、Douglas W. Laske、Annette Herscovics、Christopher D. Warren、Roger W. Jeanloz
DOI:10.1016/0008-6215(83)88014-8
日期:1983.8
Particulate fractions of Micrococcuslysodeikticus incubated with UDP-D-[14C]glucose incorporated radioactivity into a chloroform - methanol-soluble, low-mol. wt. compound, and into a polymer. The low-mol. wt. compound consisted of a glucolipid that was extremely labile to mild acid hydrolysis with the formation of D-[14C]glucose, and to mild alkali, yielding 14C-labeled alpha-D-glucopyranose 1,2-phosphate