Article Ethyl isonipecotate IC50 carbon nuclear magnetic resonance drug synthesis proton nuclear magnetic resonance thin layer chromatography unclassified drug 1,2,4-Triazole 1,3,4-Oxadiazole 2 [(5 {1 [(4 methoxyphenyl)sulfonyl] 4 piperidinyl} 4 phenyl 4h 1,2,4 triazol 3 yl)sulfanyl] n (2 methylphenyl)acetamide 2 [(5 {1 [(4 methoxyphenyl)sulfonyl] 4 piperidinyl} 4 phenyl 4h 1,2,4 triazol 3 yl)sulfanyl] n (3 methylphenyl)acetamide 2 [(5 {1 [(4 methoxyphenyl)sulfonyl] 4 piperidinyl} 4 phenyl 4h 1,2,4 triazol 3 yl)sulfanyl] n (4 methylphenyl)acetamide 5 (1 [(4 methylphenyl)sulfonyl] 4 piperidinyl) 1,3,4 oxadiazole 2 thiol Anti-cancer activity Butyrylcholinesterase inhibition China DPPH radical scavenging assay Foreign investor Institutional investor MTT assay Propanamides Qualified foreign institutional investor (QFII) scheme Urease inhibition antineoplastic activity antioxidant antioxidant activity benzene derivative binding affinity biological activity