Mechanochemical solid-state synthesis of 2-aminothiazoles, quinoxalines and benzoylbenzofurans from ketones by one-pot sequential acid- and base-mediated reactions
ball-milling conditions – were set up for a sequential base-mediated condensation reaction with thiourea/thiosemicarbazides, o-phenylenediamine and salicylaldehyde to afford 2-aminothiazoles, 2-hydrazinylthiazoles, quinoxalines and benzoylbenzofurans, respectively, in respectable yields. The viability of one-pot sequential acid- and base-mediatedreactions in the solid state under ball-milling conditions
Heterocyclic derivatives of 1-(1,3-dioxolan-2-ylmethyl)-1H-imidazoles
申请人:Janssen Pharmaceutica, N.V.
公开号:US04160841A1
公开(公告)日:1979-07-10
Heterocyclic derivatives of 1-(1,3-dioxolan-2-ylmethyl)-1H-imidazoles, useful as antifungal and antibacterial agents.
1-(1,3-二氧戊环-2-基甲基)-1H-咪唑的杂环衍生物,作为抗真菌和抗菌剂有效。
Structure–activity studies of 4-phenyl-substituted 2′-benzoylpyridine thiosemicarbazones with potent and selective anti-tumour activity
作者:Adeline Y. Lukmantara、Danuta S. Kalinowski、Naresh Kumar、Des R. Richardson
DOI:10.1039/c3ob41109e
日期:——
2â²-Benzoylpyridine thiosemicarbazones (BpT) are effective iron chelators and display potent anti-proliferative activity against tumour cells. In order to gain greater insight into the structureâactivity relationships of the BpT chelators, ten new analogues containing phenyl substituents at the N4-position of the BpT structure were synthesised. Importantly, aromatic substitution at the latter position of the BpT scaffold has not been previously explored and these studies represent the first attempt to investigate their structureâactivity relationships. These compounds demonstrated significantly enhanced anti-proliferative activity compared to the clinically used iron chelator, desferrioxamine (DFO). Furthermore, the compounds showed appreciable therapeutic indices against cancer cells over normal cells in vitro. Structureâactivity analysis revealed that electron-donating substituents such as âCH3 and âOCH3 resulted in greater anti-proliferative activity than electron-withdrawing groups such as âBr and âCl. These findings help to elucidate the effect of a variety of 4-phenyl substituents on the biological activity of BpT series of chelators and facilitate the future development of thiosemicarbazones with improved anti-tumour activity.
“The Golden Method”: Electrochemical Synthesis Is an Efficient Route to Gold Complexes
作者:Luis M. González-Barcia、María J. Romero、Ana M. González Noya、Manuel R. Bermejo、Marcelino Maneiro、Guillermo Zaragoza、Rosa Pedrido
DOI:10.1021/acs.inorgchem.6b01362
日期:2016.8.15
Gold compounds to be obtained by the direct electrochemical oxidation of a noble metal are reported. This achievement provides an alternative procedure to obtaining neutral gold compounds with potential medical or catalytic applications.
[EN] THIOSEMICARBAZONES WITH MDR1 - INVERSE ACTIVITY<br/>[FR] THIOSEMICARBAZONES À ACTIVITÉ ANTI-MDR1
申请人:US HEALTH
公开号:WO2012033601A1
公开(公告)日:2012-03-15
Disclosed herein are drug compounds that have MDR-inverse activity and thus are effective against multidrug-resistant cells. Exemplary compounds disclosed herein have the structure;Formula (I). Examples of the disclosed compounds have been found to have, inter alia, efficacy in directly treating multidrug resistant cells, rendering multidrug resistant cells susceptible to other chemotherapeutics and in some instances reversing multidrug resistance.