Hypervalent Iodine(III)-Catalyzed Synthesis of 2-Arylbenzofurans
作者:Fateh Singh、Saeesh Mangaonkar
DOI:10.1055/s-0037-1610650
日期:2018.12
route for the synthesis of 2-arylbenzofurans is described by iodine(III)-catalyzed oxidative cyclization of 2-hydroxystilbenes using 10 mol% (diacetoxyiodo)benzene [PhI(OAc)2] as catalyst in the presence of m-chloroperbenzoic acid. The 2-arylbenzofurans were isolated in good to excellent yields. An alternative route for the synthesis of 2-arylbenzofurans is described by iodine(III)-catalyzed oxidative
Synthesis, Antitumor Evaluation, and Apoptosis-Inducing Activity of Hydroxylated (<i>E</i>)-Stilbenes
作者:Cedric J. Lion、Charles S. Matthews、Malcolm F. G. Stevens、Andrew D. Westwell
DOI:10.1021/jm049238e
日期:2005.2.1
The parallel solution-phase synthesis of a series of 30 monohydroxylated (E)-stilbene analogues is described. In vitro screening revealed low micromolar activity (GI(50)) against the MDA MB 468 breast cancer cell line. Activity in MDA MB 468 cells correlated with the ability to induce apoptosis following drug treatment by the most potent agents in the series, e.g., 5dy and 5jy, an observation further reinforced by AnnexinV-FITC analysis and fluorescence microscopy.
Hypervalent Iodine Mediated Oxidative Cyclization of o-Hydroxystilbenes into Benzo- and Naphthofurans
作者:Thomas Wirth、Fateh Singh
DOI:10.1055/s-0031-1290588
日期:2012.4
A new and convenient metal-free cyclization of ortho-hydroxystilbenes into 2-arylbenzofurans and 2-arylnaphthofurans mediated by hypervalent iodine reagents is described. The cyclization products are isolated in good to excellent yields using stoichiometric (diacetoxyiodo)benzene in acetonitrile.
Substituted (.omega.-aminoalkoxy)stilbene derivatives as a new class of anticonvulsants
(omega- aminoalkoxy )stilbene derivatives has been synthesized and screened for anticonvulsantactivity. The effect of structural modification of these molecules on the activities has been systematically examined. Potent anticonvulsantactivity was displayed by 2-[4-(4-methyl-1 piperazinyl)butoxy]stilbene (20) and some2-[4-(3-alkoxy-1-piperidino)butoxy]stilbene derivatives (21, 37, 38, and 40), as determined