Various aromatic and heterocyclic oxazolines were directly converted to respective cyanomethyl esters with pyridinium hydrobromide perbromide in water at room temperature.
electronically unbiased alkenes has been developed, providing straightforward access to secondary aliphatic boronicesters from readily available materials under very mild reaction conditions. The regioselectivity of this reaction is governed by a unique pyridyl carboxamide ligated catalyst, rather than the substrates. Moreover, this transformation shows excellent chemo‐ and regio‐selectivity and remarkably
Synthesis of Functionalized Pyridines via a Regioselective Oxazoline Promoted C–H Amidation Reaction
作者:Tracy M. M. Maiden、Stephen Swanson、Panayiotis A. Procopiou、Joseph P. A. Harrity
DOI:10.1021/acs.orglett.6b01612
日期:2016.7.15
The first Rh-catalyzed C–H amidation of pyridines is reported. The incorporation of a substituent at the C2 position both is crucial to the success of this transformation and provides considerable scope for further elaboration of the resulting products. Among these compounds, 2-chloropyridines allow access to a selection of intermediates including a versatile azaquinazoline scaffold.
Compounds of the formula ##STR1## wherein R is an aromatic, 5- or 6-membered heterocyclic residue, as described herein, and their pharmaceutically usable acid addition salts are described. These compounds have interesting monoamine oxidase inhibiting properties with low toxicity and can accordingly be used for the treatment of depressive states and parkinsonism.
Design, synthesis and biological activity evaluation of a new class of 2,4-thiazolidinedione compounds as insulin enhancers
作者:Zou Huiying、Chen Guangying、Zhou Shiyang
DOI:10.1080/14756366.2019.1608197
日期:2019.1.1
Rosiglitazone was taken as the lead compound, and the structure was modified by using the bioisostere principle, and a newclass of 2,4-thiazolanedione compound was designed and synthesised. The novel series of compounds were studied for their biological activities in vitro and in vivo. In vitro tests, the biological activities showed that the target compounds have good selective activation of pe
Synthesis, antinociceptive activity and pharmacokinetic profiles of nicorandil and its isomers
作者:Isabela C. César、Adriana M. Godin、Débora P. Araujo、Francinely C. Oliveira、Raquel R. Menezes、Julliana R.A. Santos、Mariana O. Almeida、Marcela M.G.B. Dutra、Daniel A. Santos、Renes R. Machado、Gerson A. Pianetti、Márcio M. Coelho、Ângelo de Fátima
DOI:10.1016/j.bmc.2014.03.011
日期:2014.5
suggested to mediate its vasodilator activity. We synthesized nicorandil and its two isomers, which vary in the positions of the side chain containing the nitric oxide (NO) donor, and also their corresponding denitrated metabolites. The activities of these compounds were evaluated in an experimental model of pain in mice. Pharmacokinetic parameters of nicorandil and itsisomers, as well as the plasma