Process for preparing a protected 4-aminomethyl-pyrrolidi-3-one
    4.
    发明授权
    Process for preparing a protected 4-aminomethyl-pyrrolidi-3-one 有权
    制备受保护的4-氨基甲基 - 吡咯烷-3-酮的方法

    公开(公告)号:US06307059B1

    公开(公告)日:2001-10-23

    申请号:US09623214

    申请日:2000-08-30

    IPC分类号: C07D20722

    摘要: A process for preparing a compound of formula (1) in which P1 and P2 are protecting groups; comprising a) reaction of a compound of formula (5) wherein P1 is as defined for formula (1); with a Raney-nickel catalyst in a solvent under hydrogen to produce a compound of formula (6) wherein P1 is as defined for formula (1); b) protecting the amino group to produce a compound of formula (7) wherein P1 and P2 are as defined for formula (1); and c) selective reduction of the double bond to produce the compound of formula (1).

    摘要翻译: 制备式(1)化合物的方法,其中P1和P2为保护基; 包括a)其中P1如式(1)所定义的式(5)化合物的反应; 用阮内镍催化剂在溶剂中在氢气下制备式(6)化合物,其中P1如式(1)所定义; b)保护氨基以产生其中P1和P2如式(1)所定义的式(7)化合物; 和c)选择性还原双键以制备式(1)化合物。