Syntheses of spacer-armed carbohydrate components of the Mycobacterium avium serocomplex serovar 8

p-Nitrophenyl glycosides of 3-O-Me-β-d-Glcp-(1 → 3)-α-l-Rhap, α-l-Rhap(1 → 2)-6-deoxy-α-l-Talp, and 3-O-Me-β-d-Glcp-(1 → 3)-α-l-Rhap-(1 → 2)-6-deoxy-α-l-Talp have been prepared, related to Mycobacterium avium. Various glycosylation methods have been used for the formation of the interglycosidic linkages. The p-nitrophenyl derivatives were converted into p-isothiocyanatophenyl glycosides, capable of forming neoglycoproteins. © 1997 Elsevier Science Ltd.