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CB 1/2 dual agonists with 3-carbamoyl 2-pyridone derivatives as antipruritics: reduction of CNS side effects by introducing polar functional groups |
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| Authors: | Odan Masahide Ishizuka Natsuki Hiramatsu Yoshiharu Inagaki Masanao Hashizume Hiroshi Fujii Yasuhiko Mitsumori Susumu Morioka Yasuhide Soga Masahiko Deguchi Masashi Yasui Kiyoshi Arimura Akinori |
| Affiliation: | Shionogi Pharmaceutical Research Center, Shionogi & Co., Ltd. 1-1, Toyonaka, Osaka, Japan. masahide.oodan@shionogi.co.jp |
| Abstract: | Our lead compound 1 showed high affinity for both CB1 and CB2 receptors, suggesting the possibility of inducing psychoactive side effects through the CB1 receptor in the brain. To solve this issue, polar functional groups were introduced at the 3-position of the pyridone core of compound 1 to find CB1/2 dual agonists such as 17 and 20 which did not show any CNS side effects. |
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