- The design, synthesis, and: In vitro trypanocidal and leishmanicidal activities of 1,3-thiazole and 4-thiazolidinone ester derivatives
-
Chagas and leishmaniasis are both neglected tropical diseases, whose inefficient therapies have made them remain the cause for millions of deaths worldwide. Given this, we synthesized 27 novel 1,3-thiazoles and 4-thiazolidinones using bioisosteric and est
- Haroon, Muhammad,De Barros Dias, Mabilly Cox Holanda,Santos, Aline Caroline da Silva,Pereira, Valéria Rêgo Alves,Freitas, Luiz Alberto Barros,Balbinot, Rodolfo Bento,Kaplum, Vanessa,Nakamura, Celso Vataru,Alves, Luiz Carlos,Brayner, Fábio André,Leite, Ana Cristina Lima,Akhtar, Tashfeen
-
p. 2487 - 2500
(2021/01/29)
-
- Assessment of Thiosemicarbazone-Containing Compounds as Potential Antileukemia Agents against P-gp Overexpressing Drug Resistant K562/A02 Cells
-
P-Glycoprotein (P-gp) overexpression is considered to be the leading cause of multidrug resistance (MDR) and failure of chemotherapy for leukemia. In this study, seventeen thiosemicarbazone-containing compounds were prepared and evaluated as potential ant
- Gu, Xiaoke,Guan, Mingyu,Jiang, Chunyu,Song, Qinghua,Li, Xin,Sun, Nan,Chen, Jing,Qiu, Jingying
-
-
- Effect of organic solvents on solvatochromic, fluorescence, and electrochemical properties of synthesized thiazolylcoumarin derivatives
-
In this present investigation, thiazolylcoumarin derivatives (5a–5k) were synthesized from thiosemicarbazide, ethyl acetoacetate, and naphthaldehyde through a multistep route. The formation of thiazolylcoumarin derivatives with bioactive scaffolds was con
- Bahadur, Ali,Iqbal, Shahid,Ujan, Rabail,Channar, Pervaiz Ali,AL-Anazy, Murefah Mana,Saeed, Aamer,Mahmood, Qaiser,Shoaib, Muhammad,Shah, Mazloom,Arshad, Ifzan,Shabir, Ghulam,Saifullah, Muhammad,Liu, Guocong,Qayyum, Muhammad Abdul
-
p. 1189 - 1197
(2021/04/16)
-
- Microwave Assisted Synthesis and Biological Activity of Novel Bis{2-[2-(substituted benzylidene)hydrazinyl]thiazole} Derivatives
-
Abstract—New 4,4'-(4,6-dimethoxy-1,3-phenylene)bis{2-[2-(substituted benzylidene)hydrazinyl]thiazole} derivatives (5a–5j) have been synthesized from the corresponding 1,1'-(4,6-dimethoxy-1,3-phenylene)bis(2,2- dibromoethanone) and substituted thiosemicarbazones by the conventional method and under microwave irradiation. Structures of the synthesized compounds were characterized by FT-IR, 1H, and 13C NMR and Mass spectra. The products were evaluated for their in vitro antibacterial activity against Gram-positive and Gramnegative stains. Some of the compounds 5b, 5f, 5h demonstrated high activity against B. subtilis (+ve), compound 5c exhibited high activity against E. coli (–ve) and P. aeruginosa (–ve) stains. Among the titled compounds also evaluated for their in vitro antimycobacterial activity, the product 5b demonstrated pronounced antimycobacterial activity against M. bovis stain.
- Kumar Baba,Ashok,Rao, Boddu Ananda,Sarasija, Madderla,Murthy
-
p. 580 - 586
(2018/04/24)
-
- PhI-Catalyzed Intramolecular Oxidative Coupling Toward Synthesis of 2-Amino-1,3,4-Thiadizoles
-
A highly efficient method for the synthesis of thiadiazole derivatives via intramolecular oxidative coupling of thiosemicarbazide, using the in situ generated hypervalent iodine(III) reagents is developed. The protocol can be carried out smoothly and provides a variety of thiadiazole derivatives in moderate to excellent yields. Graphical Abstract: A highly efficient method for the synthesis of thiadiazole derivatives via PhI-catalyzed intramolecular oxidative coupling of thiosemicarbazide has been developed.
- Han, Yingzhi,Sun, Yadong,Abdukader, Ablimit,Liu, Bifu,Wang, Duozhi
-
p. 3486 - 3491
(2018/09/27)
-
- In vitro and in silico antimalarial activity of 2-(2-hydrazinyl)thiazole derivatives
-
A series of 2-(2-hydrazinyl)thiazole derivatives with a wide range of substitutions at 2-, 4- and 5-positions were synthesized, characterized and evaluated their inhibitory potentials against plasmodium falciparum, NF54, by in vitro blood stage assay. The compounds, ethyl-4-methyl-2-[(E)-2-[1-(pyridin-2- yl)ethylidene]hydrazin-1-yl]-1,3-thiazole-5-carboxylate, 4d, and 1-{4-methyl-2-[(E)-2-[1-(pyridin-2-yl)ethylidene]hydrazin-1-yl]-1, 3-thiazol-5-yl}ethan-1-one, 5d showed significant antimalarial activity with IC50 values of 0.725 μM and 0.648 μM respectively. To understand the mechanism, the binding interactions between 2-(2-hydrazinyl) thiazole derivatives and trans-2-enoyl acyl carrier protein reductase of P. falciparum were studied through docking studies. The half maximal inhibitory concentration (IC50) through docking studies for the compounds, 4d and 5d were found to be 22.88 μM and 631.84 μM respectively.
- Makam, Parameshwar,Thakur, Prasoon Kumar,Kannan, Tharanikkarasu
-
p. 138 - 145
(2014/01/06)
-
- Structure-activity relationship study of thiosemicarbazones on an African trypanosome: Trypanosoma brucei brucei
-
To explore the structure-activity relationships of thiosemicarbazones on African trypanosome: Trypanosoma brucei brucei, a series of thirty-five thiosemicarbazones (1-35) have been synthesized and characterized by their 1H NMR, 13C NMR, and FT-IR spectra. All compounds were tested for trypanocidal activity using the method "Lilit alamar blue". The comparison of trypanocidal power of thiosemicarbazones was performed considering their structures. This study that was done using acetophenone thiosemicarbazone (1) as basic model, showed that: (a) the presence of lipophilic substituents in para position on benzene ring, (b) substitution of benzene ring and (c) substitution of hydrogen of thioamide function by a phenyl, strongly influence trypanocidal activity. The various modifications to basic structure (1) allowed the synthesis of 1-(4-chlorophenyl) ethylidene-4-phenyl- thiosemicarbazide (34). With a trypanocidal activity of 3.97 μM, this compound is the most active of the series.
- Fatondji, Houssou Raymond,Kpoviessi, Salome,Gbaguidi, Fernand,Bero, Joanne,Hannaert, Veronique,Quetin-Leclercq, Joelle,Poupaert, Jacques,Moudachirou, Mansourou,Accrombessi, Georges Coffi
-
p. 2151 - 2162
(2013/07/26)
-
- Design, synthesis and biological evaluation of thiazolidinone derivatives as potential EGFR and HER-2 kinase inhibitors
-
Two series of thiazolidinone derivatives designing for potential EGFR and HER-2 kinase inhibitors have been discovered. Some of them exhibited significant EGFR and HER-2 inhibitory activity. Compound 2-(2-(5-bromo-2-hydroxybenzylidene)hydrazinyl)thiazol-4(5H)-one (12) displayed the most potent inhibitory activity (IC50 = 0.09 μM for EGFR and IC50 = 0.42 μM for HER-2), comparable to the positive control erlotinib. Docking simulation was performed to position compound 12 into the EGFR active site to determine the probable binding model. Antiproliferative assay results indicating that some of the thiazolidinone derivatives own high antiproliferative activity against MCF-7. Compound 12 with potent inhibitory activity in tumor growth inhibition would be a potential anticancer agent.
- Lv, Peng-Cheng,Zhou, Chang-Fang,Chen, Jin,Liu, Peng-Gang,Wang, Kai-Rui,Mao, Wen-Jun,Li, Huan-Qiu,Yang, Ying,Xiong, Jing,Zhu, Hai-Liang
-
experimental part
p. 314 - 319
(2010/04/02)
-