title: Isoxazolopyridone derivatives as allosteric metabotropic glutamate receptor 7 antagonists.
abstract: This Letter describes the synthesis and evaluation of mGluR7 antagonists in the isoxazolopyridone series. In the course of modification in this class, novel solid support synthesis of the isoxazolopyridone scaffold was developed. Subsequent chemical modification led to the identification of several potent derivatives with improved physicochemical properties compared to a hit compound 1. Among these, 2 showed good oral bioavailability and brain penetrability, suggesting that 2 may be useful for in vivo study to elucidate the role of mGluR7.
authors.affiliation: Banyu Tsukuba Research Institute, Banyu Pharmaceutical Co., Ltd, Okubo-3, Tsukuba, Ibaraki 300-2611, Japan. masayuki_nakamura2@oasis.ocn.ne.jp
authors.forename: Masayuki
authors.initials: M
authors.lastname: Nakamura
authors.forename: Hideki
authors.initials: H
authors.lastname: Kurihara
authors.forename: Gentaroh
authors.initials: G
authors.lastname: Suzuki
authors.forename: Morihiro
authors.initials: M
authors.lastname: Mitsuya
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Ohkubo
authors.forename: Hisashi
authors.initials: H
authors.lastname: Ohta
mesh_terms: D000284:Administration, Oral; D000494:Allosteric Regulation; D000818:Animals; D001921:Brain / Q000378:metabolism; D007555:Isoxazoles / Q000138:chemical synthesis / Q000737:chemistry* / Q000493:pharmacokinetics; D011728:Pyridones / Q000138:chemical synthesis / Q000737:chemistry* / Q000493:pharmacokinetics; D051381:Rats; D017207:Rats, Sprague-Dawley; D018094:Receptors, Metabotropic Glutamate / Q000037:antagonists & inhibitors* / Q000378:metabolism; D013329:Structure-Activity Relationship
chemical_list: D007555:Isoxazoles; D011728:Pyridones; D018094:Receptors, Metabotropic Glutamate; C102719:metabotropic glutamate receptor 7