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
Conjugate addition of pyrroles to α,β-unsaturated ketones using copper bromide as a catalyst
作者:Radhika S. Kusurkar、Sandip K. Nayak、Neelam L. Chavan
DOI:10.1016/j.tetlet.2006.08.030
日期:2006.10
Copper bromide was used as a catalyst for the addition of pyrroles to enones. When both the reactants were used in equimolar amounts, mono and dialkylated products were obtained. However, the use of excess enone furnished only dialkylated products. Thus, copper bromide was shown to be an efficient catalyst for the dialkylation of pyrroles.
Stereoelectronic effects in ring closure reactions
作者:Jeremy P. Bradley、Terence C. Jarvis、C.David Johnson、Peter D. McDonnell、Timothy A.P. Weatherstone
DOI:10.1016/s0040-4039(00)88041-7
日期:1983.1
The mechanistic criterion of reversed substituent effects in reactions, classified as and , is examined.
检查了反应中取代基作用反向的机械标准,分类为和。
Trisubstituted and tetrasubstituted pyrazolines as a novel class of cell-growth inhibitors in tumor cells with wild type p53
作者:Mohammad Abdel-Halim、Adam B. Keeton、Evrim Gurpinar、Bernard D. Gary、Simon M. Vogel、Matthias Engel、Gary A. Piazza、Frank M. Boeckler、Rolf W. Hartmann、Ashraf H. Abadi
DOI:10.1016/j.bmc.2013.09.055
日期:2013.12
Derivatives with scaffolds of 1,3,5-tri-substituted pyrazoline and 1,3,4,5-tetra-substituted pyrazoline were synthesized and tested for their inhibitory effects versus the p53(+/+) HCT116 and p53 (/) H1299 human tumor cell lines. Several compounds were active against the two cell lines displaying IC50 values in the low micromolar range with a clearly more pronounced effect on the p53(+/+) HCT116 cells. The compound class shows excellent developability due to the modular synthesis, allowing independent optimization of all three to four key substituents to improve the properties of the molecules. (C) 2013 Elsevier Ltd. All rights reserved.
Brennan, Colin M.; Hunt, Ian; Jarvis, Terence C., Canadian Journal of Chemistry, 1990, vol. 68, # 10, p. 1780 - 1785
作者:Brennan, Colin M.、Hunt, Ian、Jarvis, Terence C.、Johnson, C. David、McDonnell, Peter D.