Abstract: A 1,2,4-triazole derivative of formula 1 or a non-toxic salt thereof, a preparation method thereof, and a pharmaceutical composition containing the derivative or the salt as an active ingredient are provided: wherein: R1 represents naphthyl, indolyl, benzofuranyl, benzothienyl, benzimidazolyl, benzothiazolyl, benzotriazolyl, benzooxazolyl, quinolinyl, or isoquinolinyl; wherein, R1 is optionally substituted at a substitutable position with one or more radicals independently selected from halogen, hydroxy, nitro, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 alkoxy, C1-C6 haloalkoxy, cyano, amino, monoalkylamino, and dialkylamino; R2 represents methyl or amino; and A, B, E, and D each independently represent carbon or nitrogen.

Abstract: A 1,2,4-triazole derivative of formula 1 or a non-toxic salt thereof, a preparation method thereof, and a pharmaceutical composition containing the derivative or the salt as an active ingredient are provided: wherein, Ar represents naphthyl; 3,4-methylenedioxyphenyl: phenyl; or phenyl substituted with the group selected from C1-C6 alkyl, C1-C6 alkoxy, or halogen.

Abstract: A 1,2,4-triazole derivative of formula 1 or a non-toxic salt thereof, a preparation method thereof, and a pharmaceutical composition containing the derivative or the salt as an active ingredient are provided: 1