Design, Synthesis, and Biological Evaluation of Indole-2-carboxamides as Potential Multi-Target Antiproliferative Agents
作者:Lamya H. Al-Wahaibi、Anber F. Mohammed、Mostafa H. Abdelrahman、Laurent Trembleau、Bahaa G. M. Youssif
DOI:10.3390/ph16071039
日期:——
A small set of indole-based derivatives, IV and Va–I, was designed and synthesized. Compounds Va–i demonstrated promising antiproliferative activity, with GI50 values ranging from 26 nM to 86 nM compared to erlotinib’s 33 nM. The most potent antiproliferative derivatives—Va, Ve, Vf, Vg, and Vh—were tested for EGFR inhibitory activity. Compound Va demonstrated the highest inhibitory activity against
Structure–Activity Relationship Study of Indole-2-carboxamides Identifies a Potent Allosteric Modulator for the Cannabinoid Receptor <b>1</b> (CB1)
作者:Mariam M. Mahmoud、Hamed I. Ali、Kwang H. Ahn、Aparna Damaraju、Sushma Samala、Venkata K. Pulipati、Srikanth Kolluru、Debra A. Kendall、Dai Lu
DOI:10.1021/jm4009828
日期:2013.10.24
The cannabinoid CB1 receptor is involved in complex physiological functions. The discovery of CB1 allosteric modulators generates new opportunities for drug discovery targeting the pharmacologically important CB1 receptor. 5-Chloro-3-ethyl-N-(4-(piperidin-1-yl)phenethyl)-1H-indole-2-carboxamide (ORG27569; 1) represents a new class of indole-2-carboxamides that exhibit allostery of CBI. To better understand 0 the SAR, a group of indole-2-carboxamide analogues were synthesized and assessed for allostery of the CB1 receptor. We found that within the structure of indole-2-carboxamides, the presence of the indole ring is preferred for maintaining the modulator's high binding affinity for the allosteric site but not for generating allostery on the orthosteric site. However, the C3 substituents of the indole-2-carboxamides significantly impact the allostery of the ligand. A robust CBI allosteric modulator 5-chloro-N-(4-(dimethylamino)phenethyl)-3-pentyl-1H-indole-2-carboxamide (11j) was identified. It showed an equilibrium dissociation constant (K-B) of 167.3 nM with a markedly high binding cooperativity factor (alpha = 16.55) and potent antagonism of agonist-induced GTP gamma S binding.
US4939140A
申请人:——
公开号:US4939140A
公开(公告)日:1990-07-03
5-Chlorobenzofuran-2-carboxamides: From allosteric CB1 modulators to potential apoptotic antitumor agents
作者:Bahaa G.M. Youssif、Ashraf M. Mohamed、Essam Eldin A. Osman、Ola F. Abou-Ghadir、Dina H. Elnaggar、Mostafa H. Abdelrahman、Laurent Treamblu、Hesham A.M. Gomaa
DOI:10.1016/j.ejmech.2019.05.040
日期:2019.9
Cannabinoids as THC and the CB1 allosteric modulator CBD were reported to have antiproliferative activities with no reports for other CB1 allosteric modulators as the 5-chloroindole-2-carboxamide derivatives and their furan congeners. Based on the antiproliferative activity of two 5-chlorobenzofuran-2-carboxamide allosteric CB1 modulators, a series of novel derivatives was designed and synthesized