Synthesis of aza-analogs of quinopimaric acid scaffold derivatives
作者:G. F. Vafina、R. V. Kuz’mich、F. Z. Galin、M. S. Yunusov
DOI:10.1007/s10600-013-0698-6
日期:2013.9
A method for preparing optically active diterpene compounds of the aza-birdcage type that was based on reaction of oxa-scaffold derivatives of quinopimaric acid with primary amines, amides, and carbamides was developed.
Synthesis and specific nootropic activity of (–)-cytisine derivatives with carbamide and thiocarbamide moieties in their structure
作者:I. P. Tsypysheva、A. V. Koval’skaya、N. S. Makara、A. N. Lobov、I. A. Petrenko、E. G. Galkin、T. A. Sapozhnikova、F. S. Zarudii、M. S. Yunusov
DOI:10.1007/s10600-012-0329-7
日期:2012.9
N-(methylcytisinyl)-N′-substituted ureas, N-substituted cytisine-12-carbamides, and cytisine-12-thiocarbamide were prepared by reaction of (–)-cytisine with urea and thiourea and of (–)-cytisine and its 12-N-methyl-3-amino derivative with isocyanates. Their specific nootropic activity was studied in vivo. The therapeutic index was determined for the lead compound. Promising candidates for further pharmacological testing were found.
Aza-Michael reaction of 12-<i>N</i>-carboxamide of (–)-cytisine under high pressure conditions
作者:Inna P. Tsypysheva、Alexander N. Lobov、Alena V. Kovalskaya、Polina R. Petrova、Sergey P. Ivanov、Shamil A. Rameev、Sophia S. Borisevich、Rustam L. Safiullin、Marat S. Yunusov
DOI:10.1080/14786419.2014.968150
日期:2015.1.17
The first example of aza-Michael reaction of 12-N-carboxamide of quinolizidine alkaloid (–)-cytisine with α,β-unsaturated ketones, dimethylacetylenedicarboxylate and β-nitrostyrene under high pressure condition has been described. It has been shown that the [4+2]-cycloaddition takes place in the case with N-phenylmaleimide.