Abstract：
:To search for new antiestrogens more effective in treating breast cancers, we explored alternatives to the acrylic acid side chain used in many antiestrogens. To facilitate our search, we used a simple adamantyl ligand core that by avoiding stereochemical issues enabled rapid synthesis of acrylate ketone, ester, and amide analogs. All compounds were high affinity estrogen receptor α (ERα) ligands but displayed a range of efficacies and potencies as antiproliferative and ERα-downregulating agents. There were large differences in activity between compounds having minor structural changes, but antiproliferative and ERα-downregulating efficacies generally paralleled one another. Some compounds with side chain polar groups had particularly high affinities. The secondary carboxamides had the best cellular activities, and the 3-hydroxypropylamide was as efficacious as fulvestrant in suppressing cell proliferation and gene expression. This study has produced structurally novel antiestrogens based on a simple adamantyl core structure with acrylate side chains optimized for cellular antagonist activity.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Min J,Guillen VS,Sharma A,Zhao Y,Ziegler Y,Gong P,Mayne CG,Srinivasan S,Kim SH,Carlson KE,Nettles KW,Katzenellenbogen BS,Katzenellenbogen JAdoi
10.1021/acs.jmedchem.7b00585subject
Has Abstractpub_date
2017-07-27 00:00:00pages
6321-6336issue
14eissn
0022-2623issn
1520-4804journal_volume
60pub_type
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