Synthesis of Fusion-Isomeric Imidazopyridines and Their Evaluation as Inhibitors ofsyn- andanti-Protonating Glycosidases
作者:Narinder Mohal、Andrea Vasella
DOI:10.1002/hlca.200490287
日期:2005.1
The galacto- and gluco-configured imidazopyridines 4 and 5 were synthesised as potential inhibitors of syn-protonating β-glycosidases. Methyl α-D-lyxopyranoside (9) was transformed into the 3,4-anhydro-β-L-riboside 16, which, upon treatment with Et2AlCN, gave the nitrile 17 (76–85%). Reaction of 17 with the dimethyl aluminate of aminoacetaldehyde dimethyl acetal led directly to the branched chain lyxo-configured