PROCESS FOR THE PRODUCTION OF CARNITINE FROM BETA-LACTONES
    3.
    发明申请
    PROCESS FOR THE PRODUCTION OF CARNITINE FROM BETA-LACTONES 审中-公开
    用于从BETA-LACTONES生产CARNITINE的方法

    公开(公告)号:US20150126775A1

    公开(公告)日:2015-05-07

    申请号:US14521700

    申请日:2014-10-23

    IPC分类号: C07C227/12 C07C229/22

    摘要: The invention relates to a method for the production of L-carnitine, wherein a β-lactone, which is a 4-(halomethyl)oxetane-2-one, is converted into carnitine with trimethylamine (TMA), wherein the β-lactone is not subjected to a basic hydrolysis step before being contacted with the trimethylamine. The invention also relates to a carnitine having a unique impurity profile.

    摘要翻译: 本发明涉及生产L-肉毒碱的方法,其中将4-(卤代甲基)氧杂环丁烷-2-酮的一种内酯与三甲胺(TMA)一起转化为肉碱,其中, 内酯在与三甲胺接触之前不经历碱性水解步骤。 本发明还涉及具有独特杂质分布的肉碱。

    PROCESS FOR THE PRODUCTION OF CARNITINE FROM BETA-LACTONES
    4.
    发明申请
    PROCESS FOR THE PRODUCTION OF CARNITINE FROM BETA-LACTONES 审中-公开
    用于从BETA-LACTONES生产CARNITINE的方法

    公开(公告)号:US20120022288A1

    公开(公告)日:2012-01-26

    申请号:US13187177

    申请日:2011-07-20

    IPC分类号: C07C53/124

    摘要: The invention relates to a method for the production of L-carnitine, wherein a β-lactone, which is a 4-(halomethyl)oxetane-2-one, is converted into carnitine with trimethylamine (TMA), wherein the β-lactone is not subjected to a basic hydrolysis step before being contacted with the trimethylamine. The invention also relates to a carnitine having a unique impurity profile.

    摘要翻译: 本发明涉及生产L-肉毒碱的方法,其中将4-(卤代甲基)氧杂环丁烷-2-酮的一种内酯与三甲胺(TMA)一起转化为肉碱,其中, 内酯在与三甲胺接触之前不经历碱性水解步骤。 本发明还涉及具有独特杂质分布的肉碱。

    Method for the production of 6,6,6-trihalo-3,5-dioxohexanoic acid esters
    9.
    发明申请
    Method for the production of 6,6,6-trihalo-3,5-dioxohexanoic acid esters 失效
    6,6,6-三卤代-3,5-二氧代己酸酯的制备方法

    公开(公告)号:US20080161582A1

    公开(公告)日:2008-07-03

    申请号:US12071991

    申请日:2008-02-28

    IPC分类号: C07D309/30

    摘要: A method for the production of 6,6,6-trihalo-3,5-dioxohexanic acid esters of formula (I): in addition to the enols thereof and E and Z isomers, wherein X independently represents fluorine, chlorine or bromine and R1 represents alkyl, cycloalkyl, aryl or aralkyl. A method for the production of enol ethers of formula (Ib): and the enols thereof (E and Z isomers) wherein X and R1 have the above-mentioned meanings.

    摘要翻译: 制备式(I)的6,6,6-三卤代-3,5-二氧代己酸酯的方法:除了其烯醇和I E和Z I之外, >异构体,其中X独立地表示氟,氯或溴,R 1表示烷基,环烷基,芳基或芳烷基。 制备式(Ib)的烯醇醚的方法及其烯醇(E和Z异构体)其中X和R 1具有上述含义。

    Method for the production of 6,6,6-trihalo-3,5-dioxohexanoic acid esters
    10.
    发明授权
    Method for the production of 6,6,6-trihalo-3,5-dioxohexanoic acid esters 失效
    6,6,6-三卤代-3,5-二氧代己酸酯的制备方法

    公开(公告)号:US07351851B2

    公开(公告)日:2008-04-01

    申请号:US10577070

    申请日:2004-10-22

    IPC分类号: C07C69/74 C07C69/66

    摘要: A method for the production of 6,6,6-trihalo-3,5-dioxohexanoic acid esters of formula (I): in addition to the enols thereof and E and Z isomers, wherein X independently represents fluorine, chlorine or bromine and R1 represents alkyl, cycloalkyl, aryl or aralkyl. A method for the production of enol ethers of formula (Ib): and the enols thereof (E and Z isomers) wherein X and R1 have the above-mentioned meanings.

    摘要翻译: 制备式(I)的6,6,6-三卤代-3,5-二氧代己酸酯的方法:除了其烯醇和I E和Z I之外, >异构体,其中X独立地表示氟,氯或溴,R 1表示烷基,环烷基,芳基或芳烷基。 制备式(Ib)的烯醇醚的方法及其烯醇(E和Z异构体)其中X和R 1具有上述含义。