Abstract
Substituted amidoalkyl derivatives of 2,3-diarylacrylophenones carrying the amide chain on the 3-aryl residue have been prepared by reacting corresponding phenolic 2,3-diarylacrylophenones with haloalkyl carboxylic acid esters, their hydrolysis and subsequent treatment with different alkyl amines. Compounds thus prepared were evaluated for their relative binding affinity (RBA) towards estrogen receptors (ER), estrogen agonistic and antagonistic activities. Out of eleven amide derivatives thus prepared, compounds 7, 13, 15-19, 23, 24 showed significant estrogen antagonistic activity. Interestingly the phenolic compound 7 and the acid ester 18 also exhibited estrogen inhibiting property. Majority of the dimethoxy derivatives (R = OCH3) showed significantly high estrogenic activity. In order to throw light on their SAR, In silico docking of the acrylophenone derivatives in the ligand binding site of the ERα and their comparison with pure steroidal estrogen antagonist ICI-164,384 and the non-steroidal antiestrogen raloxifene, was carried out. Crystal structure of compound 6 revealed relative trans-geometry of the 2(B) and 3(C) phenyl rings.
Keywords: Antiestrogens, estrogen antagonists, antifertility, crystal structure, docking studies, RBA
Medicinal Chemistry
Title: Amide Derivatives of 2,3-diarylacrylophenone as Estrogen Receptor Binding Ligands
Volume: 3 Issue: 3
Author(s): Atul Gupta, Resmi Raghunandan, Atul Kumar, Prakash R. Maulik, Anila Dwivedy, Govind Keshri, Man Mohan Singh and Suprabhat Ray
Affiliation:
Keywords: Antiestrogens, estrogen antagonists, antifertility, crystal structure, docking studies, RBA
Abstract: Substituted amidoalkyl derivatives of 2,3-diarylacrylophenones carrying the amide chain on the 3-aryl residue have been prepared by reacting corresponding phenolic 2,3-diarylacrylophenones with haloalkyl carboxylic acid esters, their hydrolysis and subsequent treatment with different alkyl amines. Compounds thus prepared were evaluated for their relative binding affinity (RBA) towards estrogen receptors (ER), estrogen agonistic and antagonistic activities. Out of eleven amide derivatives thus prepared, compounds 7, 13, 15-19, 23, 24 showed significant estrogen antagonistic activity. Interestingly the phenolic compound 7 and the acid ester 18 also exhibited estrogen inhibiting property. Majority of the dimethoxy derivatives (R = OCH3) showed significantly high estrogenic activity. In order to throw light on their SAR, In silico docking of the acrylophenone derivatives in the ligand binding site of the ERα and their comparison with pure steroidal estrogen antagonist ICI-164,384 and the non-steroidal antiestrogen raloxifene, was carried out. Crystal structure of compound 6 revealed relative trans-geometry of the 2(B) and 3(C) phenyl rings.
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Cite this article as:
Gupta Atul, Raghunandan Resmi, Kumar Atul, Maulik R. Prakash, Dwivedy Anila, Keshri Govind, Mohan Singh Man and Ray Suprabhat, Amide Derivatives of 2,3-diarylacrylophenone as Estrogen Receptor Binding Ligands, Medicinal Chemistry 2007; 3 (3) . https://dx.doi.org/10.2174/157340607780620716
DOI https://dx.doi.org/10.2174/157340607780620716 |
Print ISSN 1573-4064 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6638 |
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