Design, Synthesis and Molecular Docking Study of Some Substituted 4,5- dihydro-2H-indazole Derivatives as Potential Anti-inflammatory Agents
作者:Mona Badr、Rasha Elbayaa、Ibrahim El-Ashmawy
DOI:10.2174/1573406411309050012
日期:2013.6.1
A new series of 4,5-dihydro-2H-indazoles was synthesized and evaluated for anti-inflammatory activity using formalin-induced paw edema and turpentine oil-induced granuloma pouch bioassays. In addition, the inhibitory activity of cyclooxygenase, ulcerogenic effect, and acute toxicity (ALD50) values were also determined. Compounds 10, 13, 15, 16, 18 and 22 were proved to display distinctive anti-inflammatory
Activated fly ash catalyzed facile synthesis of novel spiro imidazolidine derivatives as potential antibacterial and antifungal agents
作者:V. Kanagarajan、J. Thanusu、M. Gopalakrishnan
DOI:10.3109/14756366.2010.503611
日期:2011.4.1
An array of novel spiro imidazolidine derivatives was synthesized in dry media and was screened for their anti-microbial activities. Structure-activity relationship results revealed that compounds 22, 23 against P.aeruginosa, 24 against S.aureus, 24, 25 against K.pneumonia, 27 against S.aureus, β-H.streptococcus, 29 against M.luteus, K.pneumonia, 29, 30 against P.vulgaris exhibited excellent antibacterial
Michael Addition Catalyzed by Potassium Hydroxide Under Ultrasound
作者:Ji-Tai Li、Yong Cui、Guo-Feng Chen、Zhao-Li Cheng、Tong-Shuang Li
DOI:10.1081/scc-120015762
日期:2003.1.3
Abstract Michael addition of chalcone with active methylene compound such as diethyl malonate, nitromethane and ethyl acetoacetate catalyzed by potassiumhydroxide in anhydrous ethanol results Michael adducts in 75–98% yield under ultrasound irradiation in 25–90 min.
Under the high-speed vibration milling conditions, K2CO3 was found to be a very efficient catalyst for the solvent-free Michael reactions of 1,3-dicarbonyl compounds with chalcones and azachalcones. In most cases, conventional side reactions were avoided and thus excellent yields were achieved. The influences of other catalysts and the vibration frequency on the Michael reaction were investigated.
Synthesis of Ethyl 5-Aryl-2-oxo-7-phenyl-1,2,3,4,4a,5-hexahydroquinoline-4a-carboxylates
作者:K. Popandova-Yambolieva
DOI:10.1055/s-1990-26796
日期:——
The addition of ethyl 6-aryl-4-phenyl-2-oxo-3-cyclohexene-1-carboxylates 1a-e to acrylonitrile in the presence of aqueous sodium hydroxide is studied. The products 2a-e are transformed to the corresponding 2-oxo-1,2,3,4,4a,5-hexahydroquinolines 3 by heating with ammonium acetate at 180°C.