JOHN P. DEVLIN. Can. J. Chem. 54, 2804 (1976). 011 dkrit la synthese des 0x04 8H-oxadiazolo-1,2,4 [2,3-ilpurines (1) ainsi que leurs patrons de fragmentation en spectrom6trie de masse. Par hydrolyse en milieu acide de 1 on obtient de nouvelles imidazole-5-yl 4H-oxadiazole-1,2,4 ones-5 (5). ... Studies directed at the development of poten- tial immunosuppressive agents have led us to investigate novel modifications of the purine base, adenine. To this ...