Thyroid receptor ligands. Part 7: Indirect antagonists of the thyroid hormone receptor with improved affinity |
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Authors: | Malm Johan Gordon Sandra Brandt Peter Carlsson Bo Agback Peter Bäckbro Saeidi Anna Sandberg Johnny |
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Institution: | Karo Bio AB, Novum, Huddinge S-141 57, Sweden. johanm@excite.com |
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Abstract: | Based on the concept of 'indirect antagonism' of nuclear receptors, a series of thyroid hormone receptor (TR) antagonists were prepared with improved affinity compared with what was previously described. The results of a binding assay for the human TR and reporter cell assay revealed, within this series, that an m-bromobenzoyl substituent (11f) was optimal in terms of affinity and antagonist activity. Compared with already reported TR antagonists, their affinities are within the same range, thus potentially representing useful approach to novel and high-affinity TR-antagonists. |
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