Potansiyel biyolojik aktif bazı yeni N-(3-alkil/aril-4,5-dihidro-1H-1,2,4-triazol-5-on-4-il)-amid türevlerinin sentezi, karakterizasyonu ve bazı özelliklerinin incelenmesi Synthesis, characterization and investigation of some properties of potential biological active some new N-(3-alkyl/aryl-4,5-dihydro-1H-1,2,4-triazol-5-one-4-yl)-amide derivatives