Uji aktivitas Inhibitor DPP4, antiinflamasi, dan antioksidan turunan 2-(Alkil-aminometil)-N-Metilbenzonitril Kuinazolinon = Activity test of DPP4 Inhibitors, antiinflammatory, and antioxidant derivatives 2-(Alkyl-aminomethyl)-N-Methylbenzonitrile Quinazolinone