16502-08-2Relevant academic research and scientific papers
Synthesis of 5-alkyl-2-amino-1,3,4-thiadiazoles and α,ω-bis(2- amino-1,3,4-thiadiazol-5-yl)alkanes in ionic liquids
Epishina, Margarita A.,Kulikov, Alexander S.,Ignat'Ev, Nikolai V.,Schulte, Michael,Makhova, Nina N.
, p. 331 - 333 (2011)
Reaction of thiosemicarbazide with carboxylic acids, including N-substituted amino acids, in ionic liquids with H2SO4 as a catalyst affords 5-R-2-amino-1,3,4-thiadiazoles. On using alkanedicarboxylic acids, α,ω-bis(2-amino-1,3,4,-thiadiazol-5-yl)alkanes were obtained.
Synthesis of novel five-membered nitrogen-containing heterocyclic compounds from derivatives of arylsulfonyl- and arylthioacetic and -propionic acids
Golovlyova,Moskvichev,Alov,Kobylinsky,Ermolaeva
, p. 1102 - 1106 (2001)
A series of novel substituted 1,3,4-oxa(thia)diazoles and triazoline-3-thiones has been synthesized from thiosemicarbazides and nitriles of arylthio-, arylsulfonylacetic and -propionic acids. A mechanism is proposed for the preparation of 2-amino-5-substi
Synthesis of (1,3,4-thiadiazol-2-yl)-acrylamide derivatives as potential antitumor agents against acute leukemia cells
An, Ran,Guo, Chun,Li, Qing,Li, Yan,Wang, Renxiao,Xu, Yaochun,Zhou, Mi
supporting information, (2020/03/25)
A lead compound with the (1,3,4-thiadiazol-2-yl)-acrylamide scaffold was discovered to have significant cytotoxicity on several tumor cell lines in an in-house cell-based screening. A total of 60 derivative compounds were then synthesized and tested in a CCK-8 cell viability assay. Some of them exhibited improved cytotoxic activities. The most potent compounds had IC50 values of 1–5 μM on two acute leukemia tumor cell lines, i.e. RS4;11 and HL-60. Flow cytometry analysis of several active compounds and detection of caspase activation indicated that they induced caspase-dependent apoptosis. It was also encouraging to observe that these compounds did not have obvious cytotoxicity on normal cells, i.e. IC50 > 50 μM on HEK-293T cells. Although the molecular targets of this class of compound are yet to be revealed, our current results suggest that this class of compound represents a new possibility for developing drug candidates against acute leukemia.
Novel 1,3,4-thiadiazole conjugates derived from protocatechuic acid: Synthesis, antioxidant activity, and computational and electrochemical studies
Jakovljevi?, Katarina,Joksovi?, Milan D.,Botta, Bruno,Jovanovi?, Ljiljana S.,Avdovi?, Edina,Markovi?, Zoran,Mihailovi?, Vladimir,Andri?, Marijana,Trifunovi?, Sne?ana,Markovi?, Violeta
, p. 585 - 598 (2019/07/05)
A series of 15 novel 1,3,4-thiadiazole amide derivatives containing a protocatechuic acid moiety were synthesized and structurally characterized. In addition, the corresponding imino (4) and amino (5) analogues of a phenyl-substituted 1,3,4-thiadiazole am
PhI-Catalyzed Intramolecular Oxidative Coupling Toward Synthesis of 2-Amino-1,3,4-Thiadizoles
Han, Yingzhi,Sun, Yadong,Abdukader, Ablimit,Liu, Bifu,Wang, Duozhi
, p. 3486 - 3491 (2018/09/27)
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.
Gamma-glutamyl transpeptidase inhibitors and methods of use
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Page/Page column 4; 27, (2017/01/31)
Compositions that are effective in inhibiting gamma-glutamyl transpeptidase are disclosed. Methods of producing and using these compositions are also disclosed.
Synthesis and antiinflammatory activity of some imidazo[2,1-b][1,3,4]thiadiazole derivatives
Karki, Subhas S.,Rana, Vivek,Sivan, Ramjith U.,Kumar, Sujeet,Renuka, Vinayakumar,Ramareddy, Sureshbabu A.,Subbarao, Prasanna G.,Si, Sudam C.
, p. 931 - 936 (2015/10/12)
A number of imidazo[2,1-b][1,3,4]thiadiazole derivatives having alkyl and aryl moieties attached to positions 2 and 6 of imidazo[2,1-b][1,3,4]thiadiazole nucleus, respectively, were prepared and characterized by IR, NMR and mass spectroscopy. Antiinflamma
Synthesis and antiproliferative assay of norcantharidin derivatives in cancer cells
Tu, Guo Gang,Zhan, Jian Feng,Lv, Qiao Li,Wang, Jia Qi,Kuang, Bin Hai,Li, Shao Hua
, p. 376 - 381 (2014/05/20)
Diels-Alder reaction between furan and maleic anhydride resulted in 5,6-dehydro norcantharidin, then norcantharidin was obtained by reduction. The substituted-carboxylic acid was condensed with N-aminothiourea in presence of phosphorus oxychloride, yielding 2-amino-1,3,4-thiadiazole derivatives. Novel norcantharidin derivatives were synthesized with acylation, then intramolecular condensation using norcantharidin (or 5,6-dehydro norcantharidin) and 2-amino-1,3,4-thiadiazole derivatives. All the target compounds were confirmed by IR, 1HNMR, ESI-MS and were reported for the first time. Norcantharidin derivatives antiproliferative assay was tested by MTT method against A549 and PC-3 cell lines. The results showed that all the norcantharidin derivatives displayed moderate inhibitory activities.
One-pot synthesis of 5H-1,3,4-thiadiazolo[3,2-a] pyrimidin-5-one derivatives
Dong, Hong-Ru,Gao, Zhong-Lian,Li, Rong-Shan,Hu, Yi-Ming,Dong, Heng-Shan,Xie, Zhi-Xiang
, p. 55827 - 55831 (2015/01/16)
A novel and efficient one-pot method has been developed for the synthesis of 2-substituted-5H-1,3,4-thiadiazolo[3,2-a]pyrimidin-5- one derivative by the combination of [3 + 3] cycloaddition, reduction, deamination reactions. The fused heterocyclic compoun
Design, synthesis and preliminary bioactivity studies of 1,3,4-thiadiazole hydroxamic acid derivatives as novel histone deacetylase inhibitors
Guan, Peng,Sun, Feng'E,Hou, Xuben,Wang, Feng,Yi, Fan,Xu, Wenfang,Fang, Hao
experimental part, p. 3865 - 3872 (2012/08/27)
Histone deacetylase (HDAC) inhibitors have emerged as a new class of anticancer agents, targeting the biological processes including cell cycle, apoptosis and differentiation. In the present study, a series of 1,3,4-thiadiazole based hydroxamic acids were developed as potent HDAC inhibitors. Some of them showed good inhibitory activity in HDAC enzyme assay and potent growth inhibition in some tumor cell lines. Among them, compound 6i (IC50 = 0.089 μM), exhibited better inhibitory effect compared with SAHA (IC50 = 0.15 μM).
