Triorganotin(IV) complexes with o-substituted arylhydroxamates: Synthesis, spectroscopic characterization, X-ray structures and in vitro cytotoxic activities
摘要:
Six new triorganotin(IV) complexes with six different RN-2-X-benzohydroxamic acid ligands having general formula R'C(O)N(RN)OH (R' = alkyl/aryl; RN = alkyl/aryl or H), (X = -I, -NO2, -OCH3, -Br and R = -CH3, -C6H5 and -C6H4-CH3), were prepared by condensation method with the respective organotin(IV) chlorides using a stoichiometric ratio of 1:1. The bonding and coordination behaviour of these complexes were investigated on the basis of FT-IR, multinuclear H-1, C-13 and Sn-119 NMR spectroscopies. Complexes (1) and (3) crystallize in the orthorhombic P2(1)2(1)2(1) space group and complex (2) crystallizes in the triclinic P-1 space group whereas complex (4) crystallizes in the monoclinic P2(1)/c space group. The tested triphenyltin(IV) complexes showed significant cytotoxicities, higher than doxorubicin toward K-562, Jurkat, HepG2 and L929 cells. (C) 2014 Elsevier B.V. All rights reserved.
Benzohydroxamic acids as potent and selective anti-HCV agents
作者:Maxim V. Kozlov、Alla A. Kleymenova、Lyudmila I. Romanova、Konstantin A. Konduktorov、Olga A. Smirnova、Vladimir S. Prasolov、Sergey N. Kochetkov
DOI:10.1016/j.bmcl.2013.08.081
日期:2013.11
A diverse collection of 40 derivatives of benzohydroxamic acid (BHAs) of various structural groups were synthesized and tested against hepatitis C virus (HCV) in full-genome replicon assay. Some of these compounds demonstrated an exceptional activity, suppressing viral replication at sub-micromolar concentrations. The compounds were inactive against key viral enzymes NS3, and NS5B in vitro assays, suggesting host cell inhibition target(s). The testing results were consistent with metal coordination by the BHAs hydroxamic group in complex with a target(s). Remarkably, this class of compounds did not suppress poliomyelitis virus (PV) propagation in RD cells indicating a specific antiviral activity of BHAs against HCV. (C) 2013 Elsevier Ltd. All rights reserved.
Preparation and properties of N-methyl- and N-(4-chlorophenyl)-substituted hydroxamic acids
作者:Tilak R. Choudhary、Shiv G. Tandon
DOI:10.1021/je00040a035
日期:1985.4
LOBO, A. M.;PRABHAKAR, S.;TAVARES, M. R., TETRAHEDRON LETT., 1981, 22, N 31, 3007-3008
作者:LOBO, A. M.、PRABHAKAR, S.、TAVARES, M. R.
DOI:——
日期:——
PRABHAKAR, SUNDARESAN;LOBO, A. M.;SANTOS, M. A.;RZEPA, H. S., SYNTHESIS, BRD, 1984, N 10, 829-831
作者:PRABHAKAR, SUNDARESAN、LOBO, A. M.、SANTOS, M. A.、RZEPA, H. S.