Method of making (S)-3-(aminomethyl)-5-methylhexanoic acid
    1.
    发明授权
    Method of making (S)-3-(aminomethyl)-5-methylhexanoic acid 失效
    制备(S)-3-(氨基甲基)-5-甲基己酸的方法

    公开(公告)号:US5637767A

    公开(公告)日:1997-06-10

    申请号:US474874

    申请日:1995-06-07

    摘要: A method of making (.+-.)-3-(aminomethyl)-5-methylhexanoic acid that comprises condensing isovaleraldehyde with ##STR1## to form primarily ##STR2## reacting the ##STR3## with a cyanide source to form ##STR4## decarboxylating the ##STR5## to form ##STR6## hydrolyzing the ##STR7## with an alkali or alkaline earth metal hydroxide to form an alkali or alkaline earth metal carboxylate salt; and hydrogenating the alkali or alkaline earth metal carboxylate salt to form (.+-.)-3-(aminomethyl)-5-methylhexanoic acid, wherein R.sub.1 and R.sub.2 are the same or different and are hydrogen, C.sub.1 -C.sub.6 alkyl, aryl, benzyl, or C.sub.3 -C.sub.6 cycloalkyl. The present invention also provides a method of making (.+-.)-3-(aminomethyl)-5-methylhexanoic acid that comprises condensing isovaleraldehyde with ##STR8## to form primarily ##STR9## reacting the ##STR10## with a cyanide source to form ##STR11## decarboxylating the ##STR12## to form an alkali or alkaline earth metal carboxylate salt; and hydrogenating the alkali or alkaline earth metal carboxylate salt to form (.+-.)-3-(aminomethyl)-5-methylhexanoic acid.

    摘要翻译: 制备(+/-) - 3-(氨基甲基)-5-甲基己酸的方法,其包括将异戊醛与“IMAGE”缩合以主要形成以形成脱羧“IMAGE”以形成水解 使用碱金属或碱土金属氢氧化物形成碱金属或碱土金属羧酸盐的“IMAGE” 和氢化碱金属或碱土金属羧酸盐形成(+/-) - 3-(氨甲基)-5-甲基己酸,其中R 1和R 2相同或不同,为氢,C 1 -C 6烷基,芳基,苄基 ,或C 3 -C 6环烷基。 本发明还提供了制备(+/-) - 3-(氨基甲基)-5-甲基己酸的方法,其包括将异戊醛与“IMAGE”缩合以主要形成“IMAGE”,使“IMAGE”与氰化物源反应形成 使脱羧以形成碱金属或碱土金属羧酸盐; 并将碱金属或碱土金属羧酸盐氢化形成(+/-) - 3-(氨基甲基)-5-甲基己酸。

    Process for the preparation of octahydro-oxazolo [4,5-G]quinolines
    7.
    发明授权
    Process for the preparation of octahydro-oxazolo [4,5-G]quinolines 失效
    制备八氢恶唑并[4,5-G]喹啉的方法

    公开(公告)号:US4659832A

    公开(公告)日:1987-04-21

    申请号:US743198

    申请日:1985-06-10

    IPC分类号: C07D498/04 C07D215/02

    CPC分类号: C07D498/04

    摘要: Trans-(.+-.)-2- and/or -5-permissibly substituted octahydro-oxazolo[4,5-g]quinolines, acid addition salts thereof and individual enantiomers thereof, useful as dopamine agonists or intermediates of the preparation of dopamine agonists.

    摘要翻译: 反 - (+/-) - 和/或-5-允许取代的八氢恶唑并[4,5-g]喹啉及其单独的对映异构体,可用作多巴胺激动剂或制备多巴胺的中间体 激动剂。