Synthesis, Pharmacological Characterization, and Quantitative Structure−Activity Relationship Analyses of 3,7,9,9-Tetraalkylbispidines: Derivatives with Specific Bradycardic Activity
摘要:
A series of 3,7,9,9-tetraalkyl-3,7-diazabicyclo[3.3.1]nonane derivatives (bispidines) was synthesized and identified as potential antiischemic agents. Pharmacological experiments in vitro as well as in vivo are described, and the results are listed. For selection of those compounds fitting best to the desired profile of a specific bradycardic antianginal agent-decrease in heart rate without affecting contractility and blood pressure-these results were scored and ranked. Quantitative structure-activity relationship (QSAR) analyses were performed and discussed a posteriori by means of Hansch, nonelementary discriminant and factor analysis to get insight into the molecular features determining the biological profile. Highly significant equations were obtained, indicating hydrophobic and steric effects. Both pharmacological ranking and QSAR considerations showed compound 6 as the optimum within the structural class under investigation. Compound 6 (tedisamil, KC8857) has been selected as the most promising compound and was chosen for further pharmacological and clinical investigations as an antiischemic drug.
Chemical and electrocatalytic cascade cyclization of Guareschi imides: ‘one-pot’ simple and efficient way to the 2,4-dioxo-3-azabicyclo[3.1.0]hexane scaffold
作者:Anatoly N. Vereshchagin、Michail N. Elinson、Evgeniya O. Dorofeeva、Dmitry V. Demchuk、Ivan S. Bushmarinov、Alexander S. Goloveshkin、Gennady I. Nikishin
DOI:10.1016/j.tet.2013.04.035
日期:2013.6
as mediator results in fast and efficient cyclization with formation of a substituted 3-azabicyclo[3.1.0]hexane system in 80–98%. The fast (30 min) electrocatalytic reaction proceeds smoothly under neutral and mild conditions. The use of electrocatalysis in a cascade cyclization reaction is an efficientapproach to the medicinallyrelevant 3-azabicyclo[3.1.0]hexane scaffold avoiding the inconvenient
Kon; Thorpe, Journal of the Chemical Society, 1919, vol. 115, p. 702
作者:Kon、Thorpe
DOI:——
日期:——
Birch; Thorpe, Journal of the Chemical Society, 1922, vol. 121, p. 1835
作者:Birch、Thorpe
DOI:——
日期:——
Paul, Journal of the Indian Chemical Society, 1931, vol. 8, p. 717,723
作者:Paul
DOI:——
日期:——
Antiproliferative and antibacterial activity of some glutarimide derivatives
作者:Jelena B. Popović-Djordjević、Anita S. Klaus、Željko S. Žižak、Ivana Z. Matić、Branko J. Drakulić
DOI:10.3109/14756366.2015.1070844
日期:2016.11.1
Antiproliferative and antibacterial activities of nine glutarimide derivatives (1-9) were reported. Cytotoxicity of compounds was tested toward three human cancer cell lines, HeLa, K562 and MDA-MB-453 by MTT assay. Compound 7 (2-benzyl-2-azaspiro[5.11] heptadecane-1,3,7-trione), containing 12-membered ketone ring, was found to be the most potent toward all tested cell lines (IC50 = 9-27 mu M). Preliminary screening of antibacterial activity by a disk diffusion method showed that Gram-positive bacteria were more susceptible to the tested compounds than Gram-negative bacteria. Minimum inhibitory concentration (MIC) determined by a broth microdilution method confirmed that compounds 1, 2, 4, 6-8 and 9 inhibited the growth of all tested Gram-positive and some of the Gram-negative bacteria. The best antibacterial potential was achieved with compound 9 (ethyl 4-(1-benzyl-2,6-dioxopiperidin-3-yl) butanoate) against Bacillus cereus (MIC 0.625 mg/mL; 1.97 x 10(-3) mol/L). Distinction between more and less active/inactive compounds was assessed from the pharmacophoric patterns obtained by molecular interaction fields.