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Letters in Drug Design & Discovery
ISSN (Print): 1570-1808
ISSN (Online): 1875-628X
DOI: 10.2174/1570180811666140623204022      Price:  $58

Synthesis and Studies on Anticonvulsant and Antibacterial Activities of 1- Alkyl-4-(4H-1,2,4-triazol-4-yl)piperidine Derivatives

Author(s): Yan-Ping Yuan, Shi-Ben Wang, Guo-Hua Gong and Zhe-Shan Quan
Pages 1070-1078 (9)
Two series of 1-alkyl-4-(4H-1,2,4-triazol-4-yl)piperidines and 1-alkyl-4-(2H-1,2,4-triazol-3-one-4-yl) piperidines were synthesized and their anticonvulsant and antibacterial activities were evaluated. Pharmacological tests showed that three of the synthesized compounds (6c, 6k, 7m) displayed 100% protection at a dose of 100 mg/kg. 4-(1- Octylpiperidin-4-yl)-2,4-dihydro-3H-1,2,4-triazol-3-one (6c) was the most active compound in this study, with an ED50 of 65.4 mg/kg and a TD50 value of 241.2 mg/kg, resulting in a PI of 3.6. Four of the synthesized compounds showed potent inhibitory activity against gram positive bacteria staphylococcus aureus (RN4220, KCTC 209 and KCTC 503), especially against the strains of multidrug-resistant clinical isolates (MRSA3167/3506 and QRSA3505/3519). Among which compound 1-tetradeyl-4-(4H-1,2,4-triazol-4-yl)piperidine (7f) showed the most potent levels of activity (MIC = 2 µg/mL) against the gram-positive strains.
Graphical Abstract:
Antibacterial, anticonvulsant, maximal electroshock test, synthesis, triazole, tiazolone.
Medicinal Chemistry and Pharmacology Institute, Inner Mongolia University for the Nationalities, No. 22 Huolin He Street, Tongliao City, Inner Mongolia, 028000, P.R. China