isoforms. All the synthesized compounds were also tested for their in vivo antiinflammatory activity by two different bioassays namely, carrageenan-induced oedema and acetic acid-induced increase in capillary permeability in mice. In addition, analgesic and ulcerogenic activities were determined. The combined antiinflammatory data from in vivo animal models showed that compound 3k exhibited anti-inflammatory
Studies of NMR Chemical Shifts of Chalcone Derivatives of Five‐membered Monoheterocycles and Determination of Aromaticity Indices
作者:Eun Jeong Jeong、In‐Sook Han Lee
DOI:10.1002/bkcs.11749
日期:2019.7
(E)‐1‐heteroaryl‐3‐arylpropen‐1‐ones. The 13C chemicalshift values (δC) of the chalcone derivatives were determined in order to find if they correlated with the Hammett σ values. A good correlation, especially for the β‐C for both series, was found for the 13C chemicalshift values (δC) of the chalcone derivatives with the Hammett σ values. The chemicalshift values of the β‐C of the heterocyclic compounds
Isothiourea-catalysed enantioselective pyrrolizine synthesis: synthetic and computational studies
作者:Daniel G. Stark、Patrick Williamson、Emma R. Gayner、Stefania F. Musolino、Ryan W. F. Kerr、James E. Taylor、Alexandra M. Z. Slawin、Timothy J. C. O'Riordan、Stuart A. Macgregor、Andrew D. Smith
DOI:10.1039/c6ob01557c
日期:——
The catalytic enantioselective synthesis of a range of cis-pyrrolizine carboxylate derivatives with outstanding stereocontrol (14 examples, >95 : 5 dr, >98 : 2 er) through an isothiourea-catalyzed intramolecular Michael addition-lactonisation and ring-opening approach from the corresponding enone acid is reported. An optimised and straightforward three-step synthetic route to the enone acid starting
通过异硫脲催化的分子内迈克尔加成-内酯化和开环方法,催化对映选择性合成一系列具有出色立体控制性的顺式吡咯嗪羧酸盐衍生物(14个实例,>95 : 5 dr,>98 : 2 er )据报道烯酮酸。描述了一种从容易获得的吡咯-2-甲醛中制备烯酮酸起始材料的优化且简单的三步合成路线,其中苯并四咪唑(5 mol%)被证明是对映选择性过程的最佳催化剂。用MeOH或一系列胺对吡咯嗪二氢吡喃酮产物进行开环,以优异的收率和对映选择性获得所需的产物。计算已被用来探索导致高立体控制的因素,所观察到的顺式立体异构体的形成预计在动力学和热力学上是有利的。
Solution-phase parallel synthesis of substituted chalcones and their antiparasitary activity against Giardia lamblia
作者:Julio Montes-Avila、Sylvia P. Díaz-Camacho、Josefina Sicairos-Félix、Francisco Delgado-Vargas、I.A. Rivero
DOI:10.1016/j.bmc.2009.02.052
日期:2009.9
A library of 25-membered chalcones was prepared by parallel synthesis. Substituted acetophenones and benzaldehydes were condensed using the Claisen-Schmidt base-catalyzed aldol condensation. Several chalcones showed in vitro antiparasitic activity against Giardia lamblia. The highest activity observed for the IC50 values were 12.72, 15.05 and 15.31 mu g/mL, respectively; these are potential leads for the development of antigiardial compounds. (C) 2009 Elsevier Ltd. All rights reserved.
Reinkhardt, M.; Mitina, V. G.; Pivnenko, N. S., Journal of general chemistry of the USSR, 1980, vol. 50, # 12, p. 2244 - 2249
作者:Reinkhardt, M.、Mitina, V. G.、Pivnenko, N. S.、Lavrushin, V. F.