Copper-Catalyzed Oxidative C–O Bond Formation of 2-Acyl Phenols and 1,3-Dicarbonyl Compounds with Ethers: Direct Access to Phenol Esters and Enol Esters
作者:Jihye Park、Sang Hoon Han、Satyasheel Sharma、Sangil Han、Youngmi Shin、Neeraj Kumar Mishra、Jong Hwan Kwak、Cheong Hoon Lee、Jeongmi Lee、In Su Kim
DOI:10.1021/jo500576x
日期:2014.5.16
A copper-catalyzed oxidative coupling of 2-carbonyl-substituted phenols and 1,3-dicarbonyl compounds with a wide range of dibenzyl or dialkyl ethers is described. This protocol provides an efficient preparation of phenol esters and enol esters in good yields with high chemoselectivity. This method represents an alternative protocol for classical esterification reactions.
Assessment of antiplatelet activity of 2-aminopyrimidines
作者:Rajani Giridhar、Riyaj S. Tamboli、R. Ramajayam、Dhaval G. Prajapati、M.R. Yadav
DOI:10.1016/j.ejmech.2012.01.035
日期:2012.4
A series of 4,6-diaryl-2-aminopyrimidines was developed as antiplatelet agents and their potency was evaluated by in vitro assay. Compound 14k was found to be two times more potent than aspirin. These encouraging results could be helpful for the development of new antiplatelet compounds. (C) 2012 Elsevier Masson SAS. All rights reserved.
Synthesis of novel 4,6-diaryl-2-aminopyrimidines as potential antiplasmodial agents
作者:Rajani Giridhar、Riyaj S. Tamboli、Dhaval G. Prajapati、Sanket Soni、Sarita Gupta、M. R. Yadav
DOI:10.1007/s00044-012-0328-z
日期:2013.7
A novel series of 4,6-diaryl-2-aminopyrimidines 8a-o has been synthesized and evaluated for in vitro antiplasmodial activity against Plasmodium falciparum. Out of the 15 compounds synthesized and tested, 6 compounds have shown IC50 values in the range of 1.61-9.53 mu g/mL. These compounds are several times more potent than chloroquine and quinine, the two standard drugs used for the purpose of comparison.
Biosynthesis of a retrochalcone, echinatin: Involvement of O-methyltransferase to licodione