Cu(II)-catalyzed oxidative esterification of 2-carbonyl substituted phenols from the alcohol oxidation level
摘要:
A copper-catalyzed oxidative esterification of 2-carbonyl substituted phenols from the alcohol oxidation level is described. This protocol represents direct access to a range of 2-carbonylated aryl benzoate derivatives, which are important building blocks in the synthesis of natural and pharmacological compounds. (C) 2013 Elsevier Ltd. All rights reserved.
Compounds derived from oxazolidin-2-one and preparation and
申请人:Synthelabo
公开号:US05925662A1
公开(公告)日:1999-07-20
Derivatives of oxazolidin-2-one of general formula (I) ##STR1## in which: n is equal to 0 or 1, R.sub.1 represents a cyano group, an alkyl group or a fluoroalkyl group, R.sub.2 represents a hydrogen atom or a hydroxyl group, and R.sub.3 represents a hydrogen atom or a methyl group. Application in therapeutics.
Structure–activity relationship studies of flavonoids as potent inhibitors of human platelet 12-hLO, reticulocyte 15-hLO-1, and prostate epithelial 15-hLO-2
作者:Yesseny Vasquez-Martinez、Rachana V. Ohri、Victor Kenyon、Theodore R. Holman、Silvia Sepúlveda-Boza
DOI:10.1016/j.bmc.2007.07.036
日期:2007.12
Human lipoxygenase (hLO) isozymes have been implicated in a number of disease states and have attracted much attention with respect to their inhibition. One class of inhibitors, the flavonoids, have been shown to be potent lipoxygenase inhibitors but their study has been restricted to those compounds found in nature, which have limited structural variability. We have therefore carried out a comprehensive study to determine the structural requirements for flavonoid potency and selectivity against platelet 12-hLO, reticulocyte 15-hLO-1, and prostate epithelial 15-hLO-2. We conclude from this study that catechols are essential for high potency, that isoflavones and isoflavanones tend to select against 12-hLO, that isoflavans tend to select against 15-hLO-1, but few flavonoids target 15-hLO-2. (C) 2007 Elsevier Ltd. All rights reserved.
US5925662A
申请人:——
公开号:US5925662A
公开(公告)日:1999-07-20
Cu(II)-catalyzed oxidative esterification of 2-carbonyl substituted phenols from the alcohol oxidation level
作者:Satyasheel Sharma、Jihye Park、Mirim Kim、Jong Hwan Kwak、Young Hoon Jung、In Su Kim
DOI:10.1016/j.tet.2013.08.079
日期:2013.11
A copper-catalyzed oxidative esterification of 2-carbonyl substituted phenols from the alcohol oxidation level is described. This protocol represents direct access to a range of 2-carbonylated aryl benzoate derivatives, which are important building blocks in the synthesis of natural and pharmacological compounds. (C) 2013 Elsevier Ltd. All rights reserved.
Synthesis, docking study and relaxant effect of 2-alkyl and 2-naphthylchromones on rat aorta and guinea-pig trachea through phosphodiesterase inhibition
heated at reflux temperature, yielding the chromones 11a–11h. Evaluation of the vasorelaxant effect of 4, 11a–11h on rat aorta demonstrated that potency decreases with branched alkyl groups. Whereas the EC50 of compound 11d (substituted by an n-hexyl group) was 8.64 ± 0.39 μM, that of 11f (substituted by an isobutyl group) was 14.58 ± 0.64 μM. Contrarily, the effectiveness of the compound is directly