Inhibition of the enzyme COMT （catechol-O-methyltransferase） is an important approach in the treatment of Parkinson＇s disease. A series of potent catechols for COMT may give insight to develop new ways of antiparki...Inhibition of the enzyme COMT （catechol-O-methyltransferase） is an important approach in the treatment of Parkinson＇s disease. A series of potent catechols for COMT may give insight to develop new ways of antiparkinson drug. COMT inhibitors represent a new class of antiparkinson drugs, when they are coadministered with levodopa. Our goal of research is to study the inhibition of catechol-O-methyltransferase by molecular modeling methods. Different molecular modeling tools are used to perform this work （molecular mechanics, molecular dynamics and molecular docking （molegro virtnaldocker））. The results obtained from this work, into which the inhibition of catechol-O-methyltransferase by molecular modeling methods was elucidated, allow us to conclude that different catechols presents a more optimised inhibition of catechol-O-methyltransferase. The results suggest reducing the severity of Parkinson＇s disease.展开更多
Some novel sulfonamide-derivatives were designed to develop novel kinase inhibitors. The molecular docking study was performed for the designed compounds against epidermal growth factor kinase receptor T790M/L858R (TM...Some novel sulfonamide-derivatives were designed to develop novel kinase inhibitors. The molecular docking study was performed for the designed compounds against epidermal growth factor kinase receptor T790M/L858R (TMLR) (PDB ID: 5EDQ) to identify new drug candidates for treating cancer. Binding free energy was calculated by Molegro virtual docker (MVD) to select the most promising hits. The corresponding docking score values into EGFR (TMLR) of 4b gave the best energy docking -147.213 Kcal/mol. And some of the designed sulfonamide derivatives have been synthesized by conventional method in addition to a microwave-assisted method of synthesis. The reaction of an amino group-containing drug;sulfamethoxazole and sulfanilamide with carbonyl group in benzoyl chloride and phthalic acid in basic media, generated a series of sulfonamide derivatives. The structures of all the synthesized compounds were well characterized by Mass spectrometry (MS), Infrared spectroscopy (IR), <sup><span style="font-family:Verdana;">1</sup><span style="font-family:Verdana;">H nuclear magnetic resonance (<sup><span style="font-family:Verdana;">1</sup><span style="font-family:Verdana;">H NMR), <sup><span style="font-family:Verdana;">13</sup><span style="font-family:Verdana;">C nuclear magnetic resonance (<sup><span style="font-family:Verdana;">13</sup><span style="font-family:Verdana;">C NMR) and elemental analysis. After obtaining experimental data regarding the yield and the time taken for the synthesis by both the approaches, conventional and microwave-assisted method, it was shown that the microwave-assisted method gave higher yield with shorter time and higher temperature compared to conventional heating methods.展开更多
Several novel sulfonamide-derivatives were designed and studied their physicochemical properties to develop novel kinase inhibitors. Therefore, molecular docking was performed for the designed compounds against epider...Several novel sulfonamide-derivatives were designed and studied their physicochemical properties to develop novel kinase inhibitors. Therefore, molecular docking was performed for the designed compounds against epidermal growth factor receptor (PDB ID: 2ITY) to identify new drug candidates for treating cancer. Binding free energy was calculated by Molegro virtual docker (MVD) to select the most promising hits. The corresponding docking score values into EGFR of 4b gave the best energy docking —128.819 Kcal/mol. The identified hits can serve as starting points for further chemical synthesis and optimization to develop new potent anticancer agents.展开更多
文摘Inhibition of the enzyme COMT （catechol-O-methyltransferase） is an important approach in the treatment of Parkinson＇s disease. A series of potent catechols for COMT may give insight to develop new ways of antiparkinson drug. COMT inhibitors represent a new class of antiparkinson drugs, when they are coadministered with levodopa. Our goal of research is to study the inhibition of catechol-O-methyltransferase by molecular modeling methods. Different molecular modeling tools are used to perform this work （molecular mechanics, molecular dynamics and molecular docking （molegro virtnaldocker））. The results obtained from this work, into which the inhibition of catechol-O-methyltransferase by molecular modeling methods was elucidated, allow us to conclude that different catechols presents a more optimised inhibition of catechol-O-methyltransferase. The results suggest reducing the severity of Parkinson＇s disease.
文摘Some novel sulfonamide-derivatives were designed to develop novel kinase inhibitors. The molecular docking study was performed for the designed compounds against epidermal growth factor kinase receptor T790M/L858R (TMLR) (PDB ID: 5EDQ) to identify new drug candidates for treating cancer. Binding free energy was calculated by Molegro virtual docker (MVD) to select the most promising hits. The corresponding docking score values into EGFR (TMLR) of 4b gave the best energy docking -147.213 Kcal/mol. And some of the designed sulfonamide derivatives have been synthesized by conventional method in addition to a microwave-assisted method of synthesis. The reaction of an amino group-containing drug;sulfamethoxazole and sulfanilamide with carbonyl group in benzoyl chloride and phthalic acid in basic media, generated a series of sulfonamide derivatives. The structures of all the synthesized compounds were well characterized by Mass spectrometry (MS), Infrared spectroscopy (IR), <sup><span style="font-family:Verdana;">1</sup><span style="font-family:Verdana;">H nuclear magnetic resonance (<sup><span style="font-family:Verdana;">1</sup><span style="font-family:Verdana;">H NMR), <sup><span style="font-family:Verdana;">13</sup><span style="font-family:Verdana;">C nuclear magnetic resonance (<sup><span style="font-family:Verdana;">13</sup><span style="font-family:Verdana;">C NMR) and elemental analysis. After obtaining experimental data regarding the yield and the time taken for the synthesis by both the approaches, conventional and microwave-assisted method, it was shown that the microwave-assisted method gave higher yield with shorter time and higher temperature compared to conventional heating methods.
文摘Several novel sulfonamide-derivatives were designed and studied their physicochemical properties to develop novel kinase inhibitors. Therefore, molecular docking was performed for the designed compounds against epidermal growth factor receptor (PDB ID: 2ITY) to identify new drug candidates for treating cancer. Binding free energy was calculated by Molegro virtual docker (MVD) to select the most promising hits. The corresponding docking score values into EGFR of 4b gave the best energy docking —128.819 Kcal/mol. The identified hits can serve as starting points for further chemical synthesis and optimization to develop new potent anticancer agents.
