2‐benzylidene‐7‐methyl‐3‐oxo‐5‐phenyl‐2,3‐dihydro‐5H‐thiazolo[3,2‐a]pyrimidine‐6‐carboxylic acid methyl esters were synthesized and characterized by spectral, crystallographic, and elemental analysis. The antiinflammatory activity of the compounds was tested by the carrageenan hind paw edema test. It was found that compound 6a having a 2‐methoxyphenyl group at position 5 and a benzylidene group at position 2 was
Vanadatesulfuric Acid: A Novel, Recyclable, and Heterogeneous Catalyst for the One-Pot Synthesis of Dihydropyrimidinones and Dihydropyrimidinthiones Under Solvent-Free Conditions
作者:Masoud Nasr-Esfahani、Tooba Abdizadeh
DOI:10.1080/10426507.2012.694001
日期:2013.5.1
Abstract Vanadatesulfuric acid (VSA), as a novel and heterogeneous catalyst, was used for an efficientsynthesis of 3,4-dihydropyrimidin-2(1H)-ones (thiones) using an aldehyde, urea, or thiourea and an acyclic β-dicarbonyl compound undersolvent-freeconditions. VSA is prepared via the reaction of sodium metavanadate and chlorosulfonic acid in high purity. The catalyst was characterized by FTIR, X-ray
Microwave-Assisted and Iodine-Catalyzed Synthesis of Dihydropyrimidin-2-thiones via Biginelli Reaction Under Solvent-Free Conditions
作者:Qingjian Liu、Ning Pan、Jiehua Xu、Wenwen Zhang、Fanpeng Kong
DOI:10.1080/00397911.2011.593289
日期:2013.1.1
Abstract Microwave-assistedsynthesis of 3,4-dihydropyrimidin-2-thiones via Biginelli reaction from aldehydes, acetoacetates, and thiourea in the presence of iodine undersolvent-freeconditions has been accomplished in good yields and purity without chromatographic separation. GRAPHICAL ABSTRACT
nifedipine in inhibiting the migration process. In silico studies proved 4h to be the most potent fascin inhibitor in terms of ΔGbind although it was not inhibiting migration. The controversy between the in vitro and in silico results may cancel the theory of the involvement of the fascin inhibition in the migration inhibition. However, the considerable antimigratory effects of some of the synthesized