SYNTHESIS AND CYTOTOXIC PROPERTIES OF NITRO- AND AMINOCHALCONES
作者:Hari N. Pati、Herman L. Holt、Regan LeBlanc、John Dickson、Michelle Stewart、Toni Brown、Moses Lee
DOI:10.1007/s00044-004-0122-7
日期:2005.1
Twenty-two nitro- and aminochalcones were synthesized and characterized. Their cytotoxic properties were determined by a 3-day continuous exposure MTT assay with murine melanoma B16 cells. The aminochalcones were generally more cytotoxic than their nitro precursors. Aminochalcone 18, which has an IC50 value of 0.24 μM, was the most potent compound. The results demonstrated that the number and position
A phthalocyanine–chalcone conjugate has been designed to combine the vascular disrupting effect of chalcones with the photodynamic effect of phthalocyanines. This potential dual photodynamic and antiangiogenic agent was obtained by the condensation of a tetrahydroxylated non-peripherally substituted Zn(II) phthalocyanine with an amino chalcone converted into the corresponding activated isocyanate. The conjugate was fully characterized.
Combretastatin a-4 derivatives having antineoplastic activity
申请人:Lawrence James Nicholas
公开号:US20050065213A1
公开(公告)日:2005-03-24
Compounds are disclosed that are designed to mimic the activity of combretastatin A-4 based on chalcone, aurone, or indanone structures, or involving benzoquinone or quinone rings. The anti-cancer activity of exemplified compounds is demonstrated in a range of in vitro and in vivo assays.
Combretastatin-like chalcones as inhibitors of microtubule polymerization. Part 1: Synthesis and biological evaluation of antivascular activity
作者:Sylvie Ducki、David Rennison、Meiko Woo、Alexander Kendall、Jérémie Fournier Dit Chabert、Alan T. McGown、Nicholas J. Lawrence
DOI:10.1016/j.bmc.2009.09.039
日期:2009.11
The alpha-methyl chalcone SD400 is a potent inhibitor of tubulin assembly and possesses potent anticancer activity. Various chalcone analogues were synthesized and evaluated for their cell growth inhibitory properties against the K562 human chronic myelogenous leukemia cell line (SD400, IC50 0.21 nM; combretastatin A4 CA4, IC50 2.0 nM). Cell cycle analysis by flow cytometry indicated that these agents are antimitotic (SD400, 83% of the cells are in G(2)/M phase; CA4 90%). They inhibit tubulin assembly at low concentration (SD400, IC50 0.46 mu M; CA4, 0.10 mu M) and compete with [H-3] colchicine for binding to tubulin (8% [H-3] colchicine remained bound to tubulin after competition with SD400 or CA4). Upon treatment with SD400, remarkable cell shape changes were elicited in HUVEC cells, consistent with vasculature damaging activity. (C) 2009 Elsevier Ltd. All rights reserved.
The synthesis and Angiotensin Converting Enzyme (ACE) inhibitory activity of chalcones and their pyrazole derivatives
作者:Marco Bonesi、Monica R. Loizzo、Giancarlo A. Statti、Sylvie Michel、François Tillequin、Francesco Menichini
DOI:10.1016/j.bmcl.2010.01.113
日期:2010.3
A series of chalcones (1-9) and pyrazoles (10-18) was prepared to investigate their potential activity as Angiotensin I-Converting Enzyme (ACE) inhibitors. Their structures were verified by elemental analysis, UV, IR, MS, H-1 NMR, C-13 NMR, and 2D NMR experiments. Among tested compounds, chalcone 7 exerted the highest activity with an IC50 value of 0.219 mM, while the most potent pyrazole was 15 (IC50 value of 0.213 mM). (C) 2010 Elsevier Ltd. All rights reserved.