Method of producing 3-amino-2-hydroxy-1-propanol derivatives
    1.
    发明授权
    Method of producing 3-amino-2-hydroxy-1-propanol derivatives 失效
    3-氨基-2-羟基-1-丙醇衍生物的制备方法

    公开(公告)号:US5744630A

    公开(公告)日:1998-04-28

    申请号:US436344

    申请日:1995-07-18

    摘要: The present invention has for its object to provide an efficient and economical method for producing an 3-amino-2-hydroxy-1-propanol derivative and an oxazolidinone derivative derived therefrom, both of which are of use as intermediates for the production of drugs including HIV protease inhibitors. The invention relates to a method for producing an 3-amino-2-hydroxy-1-propanol derivative of general formula (2) ##STR1## (wherein R.sup.1 represents alkyl, aralkyl or aryl; R.sup.2 and R.sup.3 independently represent hydrogen or an amino-protecting group, provided, however, that both R.sup.2 and R.sup.3 are not concurrently hydrogen) and an oxazolidinone derivative derived therefrom.

    摘要翻译: PCT No.PCT / JP94 / 01540 Sec。 371 1995年7月18日第 102(e)日期1995年7月18日PCT 1994年9月20日PCT PCT。 公开号WO95 / 08530 1995年3月30日发明内容本发明的目的是提供一种生产3-氨基-2-羟基-1-丙醇衍生物和衍生自其的恶唑烷酮衍生物的有效且经济的方法,它们均用作 生产药物包括HIV蛋白酶抑制剂。 本发明涉及制备通式(2)的3-氨基-2-羟基-1-丙醇衍生物的方法(2)(其中R1代表烷基,芳烷基或芳基; R2和R3独立地表示氢或 氨基保护基,但是R2和R3不同时为氢)和衍生自其的恶唑烷酮衍生物。

    Processes for producing azetidine-2-carboxylic acid and intermediates
thereof
    2.
    发明授权
    Processes for producing azetidine-2-carboxylic acid and intermediates thereof 失效
    制备氮杂环丁烷-2-羧酸的方法及其中间体

    公开(公告)号:US6150535A

    公开(公告)日:2000-11-21

    申请号:US403545

    申请日:1999-12-30

    IPC分类号: C07D205/04

    CPC分类号: C07D205/04 Y02P20/55

    摘要: The present invention has its object to provide a process for producing azetidine-2-carboxylic acid and an intermediate thereof, which is efficient and economical and suited for industrial practice.The present invention is related to a process for producing azetidine-2-carboxylic acid of the following formula (5), which comprises subjecting a 4-oxo-2-azetidinecarboxylic acid derivative represented by the general formula (1) to hydride reduction to give azetidine-2-methanol of the following formula (2), treating the same with an amino-protecting agent to give N-protected azetidine-2-methanol represented by the following general formula (3), treating this with an oxidizing agent to give N-protected azetidine-2-carboxylic acid represented by the following general formula (4) and, further, subjecting the amino-protecting group thereof to elimination.

    摘要翻译: PCT No.PCT / JP98 / 01895 Sec。 371 1999年12月30日第 102(e)1999年12月30日PCT PCT。1994年4月24日PCT公布。 公开号WO98 / 47867 日期:1998年10月29日本发明的目的是提供一种制备氮杂环丁烷-2-羧酸及其中间体的方法,其有效且经济且适用于工业实践。 本发明涉及下述式(5)所示的氮杂环丁烷-2-羧酸的制造方法,其特征在于,将通式(1)表示的4-氧代-2-氮杂环丁烷羧酸衍生物进行氢化还原,得到 (2)的氮杂环丁烷-2-甲醇,用氨基保护剂进行处理,得到由以下通式(3)表示的N-保护的氮杂环丁烷-2-甲醇,用氧化剂处理,得到 由以下通式(4)表示的N-保护的氮杂环丁烷-2-羧酸,进一步将其氨基保护基进行消除。