Propargyl mannosides

Further, dendritic growths with new multiarmed clusters having more flexibility and various geometries have also been considered by the authors. Thus, the hexato-sylated dipentaerythritol 39 was converted into hexaazide 40, which upon treatment with propargylated mannoside 29 under standard conditions of click chemistry and subsequent O-deacetylation afforded the hexavalent cluster 42 in good (61%) yield over two steps (Scheme 6). 

Compounds described as sugar rods and with phytohemagglutinin cross-linking properties, e.g. compound 108, have been made by a Pd-induced coupling reaction of propargyl and p-iodophenyl a-D-mannoside tetraacetate, and p-diiodobenzene led to the linear product with two propargyl a-D-mannoside substituents on the benzene rings. ° ... 

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