Article 4 IC50 4 drug synthesis proton nuclear magnetic resonance 4 unclassified drug 4 Ethyl isonipecotate 3 molecular docking 3 carbon nuclear magnetic resonance 2 controlled study 2 doxorubicin 2 electron impact mass spectrometry 2 mass spectrometry 2 thin layer chromatography 2 thiourea 2 1 (3,5 dichloro 2 ethoxyphenylsulfonyl) N (2 hydroxybenzylidene)piperidin 4 carbohydrazide 1 1 (3,5 dichloro 2 ethoxyphenylsulfonyl) N (2 nitrobenzylidene)piperidin 4 carbohydrazide 1 1 (3,5 dichloro 2 ethoxyphenylsulfonyl) N (2,4 dichlorobenzylidene)piperidin 4 carbohydrazide 1 1 (3,5 dichloro 2 ethoxyphenylsulfonyl) N (3 nitrobenzylidene)piperidin 4 carbohydrazide 1 1 (3,5 dichloro 2 ethoxyphenylsulfonyl) N (3,4 dimethoxybenzylidene)piperidin 4 carbohydrazide 1 1 (3,5 dichloro 2 ethoxyphenylsulfonyl) N (4 dimethylamino)benzylidene)piperidin 4 carbohydrazide 1 1 (3,5 dichloro 2 ethoxyphenylsulfonyl) N (4 hydroxybenzylidene)piperidin 4 carbohydrazide 1 1 (3,5 dichloro 2 ethoxyphenylsulfonyl) N (4 methoxybenzylidene)piperidin 4 carbohydrazide 1 1 [(3,5 dichloro 2 ethoxyphenylsulfonyl] piperidin 4 carbohydrazide 1 1,2,4-Triazole 1 1,3,4-Oxadiazole 1 2 [(5 (aralkyl/aryl1,3,4 oxadiazol 2 yl)sulfanyl] n (4 methyl 1,3 thiazol 2 yl) acetamide 1 2 [(5 benzyl 1,3,4 oxadiazol 2 yl)sulfanyl] n (4 methyl 1,3 thiazol 2 yl)acetamide 1 2 [(5 {1 [(4 methoxyphenyl)sulfonyl] 4 piperidinyl} 4 phenyl 4h 1,2,4 triazol 3 yl)sulfanyl] n (2 methylphenyl)acetamide 1 2 [(5 {1 [(4 methoxyphenyl)sulfonyl] 4 piperidinyl} 4 phenyl 4h 1,2,4 triazol 3 yl)sulfanyl] n (3 methylphenyl)acetamide 1 2 [(5 {1 [(4 methoxyphenyl)sulfonyl] 4 piperidinyl} 4 phenyl 4h 1,2,4 triazol 3 yl)sulfanyl] n (4 methylphenyl)acetamide 1