Process for preparing a morphinan derivative
    27.
    发明授权
    Process for preparing a morphinan derivative 失效
    制备吗啡喃衍生物的方法

    公开(公告)号:US06242604B1

    公开(公告)日:2001-06-05

    申请号:US09636633

    申请日:2000-08-11

    CPC classification number: C07F7/1892 C07D489/02 C07F7/1804 Y02P20/55

    Abstract: A process for preparing a morphinan derivative, by providing a dihydrofuranyl bridged tetracycle halide of the formula (19) wherein X is halogen, R is an alkyl group of from 1 to about 10 carbon atoms, and R1 is a protecting group; and converting the pentacycle halide into a morphinan derivative of formula (20) wherein R is as defined above.

    Abstract translation: 通过提供式(19)的二氢呋喃基桥联四环卤化物制备吗啡喃衍生物的方法,其中X为卤素,R为1至约10个碳原子的烷基,R 1为保护基; 并将五环卤化物转化为式(20)的吗啡喃衍生物,其中R如上定义。

    Process for preparing a morphinan derivative
    28.
    发明授权
    Process for preparing a morphinan derivative 失效
    制备吗啡喃衍生物的方法

    公开(公告)号:US6136979A

    公开(公告)日:2000-10-24

    申请号:US256332

    申请日:1999-02-19

    CPC classification number: C07F7/1892 C07D489/02 C07F7/1856 Y02P20/55

    Abstract: A process for preparing a morphinan derivative, by providing a dihydrofuranyl bridged tetracycle halide of the formula (19) ##STR1## wherein X is halogen, R is an alkyl group of from 1 to about 10 carbon atoms, and R.sub.1 is a protecting group; and converting the pentacycle halide into a morphinan derivative of formula (20) ##STR2## wherein R is as defined above.

    Abstract translation: 通过提供式(19)的二氢呋喃基桥联四环卤化物制备吗啡喃衍生物的方法,其中X为卤素,R为1至约10个碳原子的烷基,R 1为保护基; 并将五环卤化物转化为式(20)的吗啡喃衍生物,其中R如上定义。

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