De Novo Asymmetric Synthesis of a 6-O-Methyl-D-glycero-L-gluco-heptopyranose-Derived Thioglycoside for the Preparation of Campylobacter jejuni NCTC11168 Capsular Polysaccharide Fragments.

An enantioselective de novo synthesis of a thioglycoside derivative of the 6-O-methyl-D-glycero-L-gluco-heptopyranose residue found in the Campylobacter jejuni NCTC11168 (HS:2) capsular polysaccharide is reported. The compound is obtained from a furfural-derived chiral diol in 11 steps. Notably, compared to the only previous synthesis of this molecule, this approach significantly reduces the number of purification steps required to obtain the target.

A 19-year study on pacemaker-related infections: a claim for using postoperative antibiotics.

Background: Although the incidence of pacemaker-related infection (PMINF) is low, it necessitates removal of the pacing system. There is currently no consensus on antibiotics during implantation.

Methods: A prospective database on patients undergoing pacemaker surgery from 1991 to 2009 was reviewed to determine factors associated with PMINF.

Synthesis of the 6-O-methyl-D-glycero-α-L-gluco-heptopyranose moiety present in the capsular polysaccharide from Campylobacter jejuni NCTC 11168.

The first synthesis of the 6-O-methyl-D-glycero-α-L-gluco-heptopyranose moiety present in the capsular polysaccharide from Campylobacter jejuni NCTC 11168 is reported. The target (1) was synthesized as the 8-aminooctyl glycoside and then conjugated to bovine serum albumin (BSA) for the generation of antibodies recognizing this motif. Heptose 1 was obtained from D-galactose via a series of galactofuranose derivatives.