Synthesis and structure-activity relationships of pyrazolo[1,5-a]pyridine derivatives: potent and orally active antagonists of corticotropin-releasing factor 1 receptor |
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| Authors: | Takahashi Yoshinori Hibi Shigeki Hoshino Yorihisa Kikuchi Koichi Shin Kogyoku Murata-Tai Kaoru Fujisawa Masae Ino Mitsuhiro Shibata Hisashi Yonaga Masahiro |
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| Affiliation: | Medicinal Chemistry, Tsukuba Research Laboratories, Eisai Co., Ltd., 5-1-3 Tokodai, Tsukuba-shi, Ibaraki 300-2635, Japan. y4-takahashi@hhc.eisai.co.jp |
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| Abstract: | Design, synthesis, and structure-activity relationships of a series of 3-dialkylamino-7-phenyl pyrazolo[1,5-a]pyridines (I) as selective antagonists of the corticotropin-releasing factor 1 (CRF(1)) receptor are described. The most prominent compound to emerge from this work, 46 (E2508), exhibits potent in vitro activity, excellent drug-like properties, and robust oral efficacy in animal models of stress-related disorders. It has advanced into clinical trials. |
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