Substituted pyrido[3,4-e]oxazine diones and their therapeutic use
申请人:Sandoz, Inc.
公开号:US04054653A1
公开(公告)日:1977-10-18
Substituted pyrido[3,4-e]oxazine diones, e.g., 6-methyl-4,7-diphenyl-2H-pyrido[3,4-e]-1,3-oxazine-2,5-dione are useful as minor tranquilizers, sleep inducers and muscle relaxants.
Substituted hydroxy pyridones, e.g., 3-(.alpha.-iminobenzyl)-4-hydroxy-6-phenyl-1-methyl-2-(1H)-pyridone, are prepared by reducing corresponding isoxazolo[4,5-c]pyridin-4(5H)-ones and are useful as minor tranquilizers and sleep inducers.
Substituted hydroxy pyridones, e.g., 3-(.alpha.-iminobenzyl)-4-hydroxy-6-phenyl-1-methyl-2(1H)-pyridone, are prepared by reducing corresponding isoxazolo[4,5-c]pyridin-4(5H)-ones and are useful as minor tranquilizers and sleep inducers.
This Letter describes the synthesis and evaluation of mGluR7 antagonists in the isoxazolopyridone series. In the course of modi. cation in this class, novel solid support synthesis of the isoxazolopyridone scaffold was developed. Subsequent chemical modi. cation 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. (C) 2009 Elsevier Ltd. All rights reserved.