Abstract
New potentially active drugs derivatives of 2,5-disubstituted thiophene are synthesized by a multistep procedure. An alcohol solution of ammonia reacts with 2-formyl thiophene to form the gem-diimine 8. The oxide of benzonitrile reacts with 2-[(methylimino)methyl] or 3-[(methylimino)methyl] thiophene to form the corresponding-1,2,4 oxadiazolines (9 and 10).