Synthesis of Some 3-Aryl-1,2,4-oxadiazoles Carrying a Protected L-Alanine Side Chain

the synthesis of some 1,2,4-oxadiazole derivatives (4a-d) starting from arylamidoximes 1a-d and n-t-butoxycarbonyl-o-benzyl-l-aspartic acid is described. the structures of these new products have been determined by spectroscopic methods.