Development of a new class of aromatase inhibitors: Design, synthesis and inhibitory activity of 3-phenylchroman-4-one (isoflavanone) derivatives
作者:Kevin Bonfield、Erica Amato、Tony Bankemper、Hannah Agard、Jeffrey Steller、James M. Keeler、David Roy、Adam McCallum、Stefan Paula、Lili Ma
DOI:10.1016/j.bmc.2012.02.042
日期:2012.4
catalyzes the aromatization reaction of androgen substrates to estrogens, the last and rate-limiting step in estrogen biosynthesis. Inhibition of aromatase is a new and promising approach to treat hormone-dependent breast cancer. We present here the design and development of isoflavanone derivatives as potential aromatase inhibitors. Structural modifications were performed on the A and Brings of isoflavanones
Investigation of fluorinated and bifunctionalized 3-phenylchroman-4-one (isoflavanone) aromatase inhibitors
作者:Erica Amato、Tony Bankemper、Rebecca Kidney、Thuy Do、Alma Onate、Fathima Shazna Thowfeik、Edward J. Merino、Stefan Paula、Lili Ma
DOI:10.1016/j.bmc.2013.11.045
日期:2014.1
Fluorinated isoflavanones and bifunctionalized isoflavanones were synthesized through a one-step gold(I)-catalyzed annulation reaction. These compounds were evaluated for their in vitro inhibitory activities against aromatase in a fluorescence-based enzymatic assay. Selected compounds were tested for their anti-proliferative effects on human breast cancer cell line MCF-7. Compounds 6-methoxy-3-(pyridin-3-yl)chroman-4-one (3c) and 6-fluoro-3-(pyridin-3-yl)chroman-4-one (3e) were identified as the most potent aromatase inhibitors with IC50 values of 2.5 mu M and 0.8 mu M. Therefore, these compounds have great potential for the development of pharmaceutical agents against breast cancer. (C) 2013 Elsevier Ltd. All rights reserved.
Synthesis of 1-Amino-5,6-diaryl-3-cyano-1<i>H</i>-pyridin-2-ones and 6,7-Diaryl-4-cyano-3-hydroxy-1<i>H</i>-[1,2]diazepines from Isoflavones
作者:Mu-Lin Zhu、Zun-Ting Zhang、Dong Xue、Hui-Liang Hua、Yong Liang、Stanislaw F. Wnuk
DOI:10.1002/hlca.201300246
日期:2014.4
The one‐step cyclocondensation of substituted isoflavones (=3‐phenyl‐4H‐1‐benzopyran‐4‐ones) with cyanoacetohydrazide in the presence of KOH afforded a mixture of 1‐amino‐5,6‐diaryl‐3‐cyano‐1H‐2‐pyridin‐2‐ones and 6,7‐diaryl‐4‐cyano‐3‐hydroxy‐1H‐[1,2]diazepines.
在KOH存在的情况下,将取代的异黄酮(= 3-苯基-4 H -1-苯并吡喃-4-酮)与氰基乙酰肼进行一步式环缩合反应可得到1-氨基-5,6-二芳基-3-氰基的混合物1 H -2-吡啶-2-酮和6,7-二芳基-4-氰基-3-羟基-1 H -1,[1,2]二氮杂s。