Discovery of New 2-Phenylamino-3-acyl-1,4-naphthoquinones as Inhibitors of Cancer Cells Proliferation: Searching for Intra-Cellular Targets Playing a Role in Cancer Cells Survival
A broad variety of oxygen-substituted diaryl ketones has been synthesized by solar energy-induced Friedel Crafts acylations of 1,4-benzo- and 1,4-naphthoquinones with benzaldehydes. The in vitro antiproliferative properties of the photoproducts were assessed on prostate (DU-145), bladder (T24) and breast (MCF7) human-derived tumor cell lines and compared to non-tumor mouse fibroblasts (Balb/3T3). Among
CRYSTAL STRUCTURE OF (1,4-DIHYDROXYNAPHTHALEN-2-YL) (4'-METHOXYPHENYL) METHANONE
作者:JULIO BENITES、JAIME A VALDERRAMA、DAVID RÍOS、ALEJANDRO CÁRDENAS、IVÁN BRITO
DOI:10.4067/s0717-97072016000300029
日期:——
Solar photoacylation of 1,4-naphthoquinone with 4-methoxybenzaldehyde to give (1,4-dihydroxynaphthalen-2-yl)(4’-methoxyphenyl) methanone is one representative example of a general procedure to prepare highly functionalized 1,4-dihydroxynaphthalen-2-yl)(phenyl) methanone derivatives. The structure of the title compound was confirmed by x-ray diffraction analysis of a suitable single crystal.
Synthesis of 6-acyl-5,8-quinolinediols by photo-Friedel–Crafts acylation using sunlight
作者:Fernando De Leon、Sudhakar Kalagara、Ashley A. Navarro、Shizue Mito
DOI:10.1016/j.tetlet.2013.04.021
日期:2013.6
Synthesis of acyl-5,8-quinolinediols using sunlight was investigated. Photo-Friedel-Crafts acylation of quinoline-5,8-dione and aldehyde afforded the corresponding 6-acyl-5,8-quinolinediols regioselectively in moderate to good yields. The compounds have a variety of potential applications. (C) 2013 Elsevier Ltd. All rights reserved.
The cytotoxic effect of 2-acylated-1,4-naphthohydroquinones on leukemia/lymphoma cells
作者:Diego A. Pedroza、Fernando De Leon、Armando Varela-Ramirez、Carolina Lema、Renato J. Aguilera、Shizue Mito
DOI:10.1016/j.bmc.2013.12.007
日期:2014.1
Here, we tested seven 2-acylated-1,4-hydronaphthoquinones for their cytotoxic effects on a panel of cancer lymphoma/leukemia cells and compared to a non-cancer origin cell line. Several naphthohydroquinones exhibited selective cytotoxic effects on lymphoma/leukemia cells with lowest activity on non-cancer cells. The mode of cell death induced by an acylated naphthohydroquinone, which has a long alkyl chain, was found to be via apoptosis. Furthermore, the naphthohydroquinone provoked mitochondria depolarization and activation of its downstream effector, caspase-3, thus implicating the intrinsic apoptotic pathway as its mechanism to exert cell death. (C) 2013 Elsevier Ltd. All rights reserved.
Solar photochemistry: optimisation of the photo Friedel–Crafts acylation of naphthoquinones
作者:Lorna J. Mitchell、William Lewis、Christopher J. Moody
DOI:10.1039/c3gc41477a
日期:——
A practical and robust photo FriedelâCrafts acylation of naphthoquinones is described. Although the reaction proceeds slowly in sunlight, the optimised conditions offer a substantial improvement to those already reported, by the utilisation of a more reliable and practical âsun-mimickingâ light source, a less hazardous solvent system (trifluorotoluene) and faster reaction times. Using these conditions, the reaction scope has been expanded to include functionalised aldehyde and naphthoquinone substrates, affording the desired photo-products in acceptable to excellent yields (17â81%). Factors influencing the regiochemistry of the photo FriedelâCrafts reaction on unsymmetrical naphthoquinones have also been investigated.