Enantioselective synthesis of 6-amino-7-hydroxy-4,5,6,7-tetrahydro-imidazo[4,5,1-JK][1]-benzazepin-2[1H]-one and zilpaterol
申请人:Almena-Perea Juan Jose
公开号:US20100173892A1
公开(公告)日:2010-07-08
This invention relates to a process for the hydrogenation of a ketooxime to selectively form an aminoalcohol stereoisomer, and, in particular, to a process for the hydrogenation of 4,5-dihydro-imidazo[4,5,1-jk][1]benzazepin-2,6,7[1H]-trione-6-oxime or a salt thereof to selectively form a stereoisomer of 6-amino-7-hydroxy-4,5,6, 7-tetrahydro-imidazo[4,5,1-jk][1]-benzazepin-2[1H]-one or a salt thereof. This invention also relates to the use of the 6-amino-7-hydroxy-4,5,6,7-tetrahydro-imidazo[4,5,1-jk][1]-benzazepin-2[1H]-one hydrogenation product or a salt thereof to selectively make a stereoisomer of zilpaterol or a salt thereof, as well as the use of such a zilpaterol stereoisomer or salt in methods of treatment and medicaments for animals.
本发明涉及一种氢化酮肟的方法,以选择性地形成氨基醇立体异构体,特别是涉及一种对4,5-二氢咪唑[4,5,1-jk][1]苯并氮杂环-2,6,7[1H]-三酮-6-肟或其盐进行氢化的方法,以选择性地形成6-氨基-7-羟基-4,5,6,7-四氢咪唑[4,5,1-jk][1]-苯并氮杂环-2[1H]-酮或其盐的立体异构体。本发明还涉及使用6-氨基-7-羟基-4,5,6,7-四氢咪唑[4,5,1-jk][1]-苯并氮杂环-2[1H]-酮氢化产物或其盐选择性地制备一种齐帕特罗尔的立体异构体或其盐,以及使用这种齐帕特罗尔立体异构体或其盐在动物治疗和药物中的方法。