title: Cyclic guanidines. I. Synthesis of hypoglycemic 1-substituted 2-imino-1,3-diazacycloalkanes.
mesh_terms: D003500:Cyclization; D006146:Guanidines / Q000138:chemical synthesis*; D007004:Hypoglycemic Agents / Q000138:chemical synthesis*; D007097:Imines / Q000138:chemical synthesis; D013329:Structure-Activity Relationship
chemical_list: D006146:Guanidines; D007004:Hypoglycemic Agents; D007097:Imines