Abstract
2-Benzylthiazole-4-carboxamide 4 and 5-(β-D-ribofuranosylamino) thiazole-4-carboxamide 10 were synthesized from phenylacetylamino- and formylamino cyanoacetic acid esters 1a and 1b, respectively. The ribosylation reaction leading to 10 gave rise also to its α anomer as a minor product.