Effects of Structural and Electronic Characteristics of Chalcones on the Activation of Peroxisome Proliferator-Activated Receptor Gamma
作者:Jason Taylor Schott、Charles Edward Mordaunt、Anthony Joseph Vargas、Martin Antonio Leon、Kevin Hsinwen Chen、Mandeep Singh、Mikiko Satoh、Emilio Leal Cardenas、Santanu Maitra、Nilay Vinod Patel、Hubrecht Johan Peter de Lijser
DOI:10.1248/cpb.c12-00749
日期:——
chalcones with an electron rich group or sterically large groups such as naphthyl on the carbonyl side tend to activate PPARγ. The absence of any strict structural or electronic requirements suggests that the flexibility of the PPARγ ligand binding pocket may allow binding of diverse chalcones with some preference for a slightly larger electron-rich group on the carbonyl side. We predict that further structure-activity
Nucleophilic heterocyclic carbene-catalyzed cyclopentannulation of enals and chalcones via homoenolate has been observed for the first time. Serendipitously, the reaction lead to a very efficient synthesis of 3,4-trans-disubstituted-1-aryl cyclopentenes instead of the expected cyclopentanones. The strategy works well with thienylidene tetralone also, leading to the tricyclic cyclopentene derivative
Fluorine as a robust balancer for tuning the reactivity of topo-photoreactions of chalcones and the photomechanical effects of molecular crystals
作者:Yuanhong Shu、Kaiqi Ye、Yuan Yue、Jingbo Sun、Haoran Wang、Jiangbin Zhong、Xiqiao Yang、Hongqiang Gao、Ran Lu
DOI:10.1039/d1ce00086a
日期:——
fluorine can tune the reactivity of photo-induced [2 + 2] cycloaddition reactions in crystals. The higher the number of fluorine atoms, the higher the reactivity of the photodimerization. The single crystal structures and Hirshfeld surface analysis illustrated that the introduction of fluorine not only increased the molecular planarity but could also steer the potentially reactive double bonds in appropriate
Cooperative <i>N</i>-Heterocyclic Carbene/Lewis Acid Catalysis for Highly Stereoselective Annulation Reactions with Homoenolates
作者:Benoit Cardinal-David、Dustin E. A. Raup、Karl A. Scheidt
DOI:10.1021/ja910666n
日期:2010.4.21
A new approach that takes advantage of N-heterocyclic carbene/Lewis acidcooperativecatalysis provides access to cis-1,3,4-trisubstituted cyclopentenes from enals and chalcone derivatives with high levels of diastereoselectivity and enantioselectivity. The presence of Ti(OiPr)(4) as the Lewis acid allows for efficient substrate preorganization, which translates into high levels of diastereoselectivity
Ultrasound-mediated synthesis, biological evaluation, docking and in vivo acute oral toxicity study of novel indolin-2-one coupled pyrimidine derivatives
作者:Anna Pratima G. Nikalje、Shailee V. Tiwari、Jaiprakash N. Sangshetti、Manoj D. Damale
DOI:10.1007/s11164-018-3292-5
日期:2018.5
ultrasound-mediated greener synthesis of 11 novel 3-(4-(4-chlorophenyl)-6-(substituted phenyl/heteryl)pyrimidin-2-ylimino)indolin-2-one (7a–7k) derivatives. The synthesized derivatives were evaluated for their in vitro anticancer activity against a panel of selected human cancer cell lines of breast (MCF-7), cervix (HeLa), prostate (PC-3) and lung (A-549). Among the tested compounds, 7b exhibited most