METHOD OF PRODUCING OPTICALLY ACTIVE N-(HALOPROPYL)AMINO ACID DERIVATIVE
    5.
    发明公开
    METHOD OF PRODUCING OPTICALLY ACTIVE N-(HALOPROPYL)AMINO ACID DERIVATIVE 有权
    VERFAHREN ZUR HERSTELLUNG EINES OPTISCH AKTIVEN N-(HALOGENPROPYL)AMINOSÄUREDERIVATS

    公开(公告)号:EP2192110A1

    公开(公告)日:2010-06-02

    申请号:EP08753110.9

    申请日:2008-05-19

    摘要: The present invention provides a method for producing an optically active N-(halopropyl)amino acid derivative, wherein the method comprises the steps of obtaining a compound represented by formula (III) by reacting an optically active alanine ester represented by formula (I) or a salt thereof (hereinafter sometimes simply referred to as an "alanine ester") with a halogenated propane represented by formula (II); and obtaining an optically active N-(halopropyl)amino acid derivative represented by formula (IV) by introducing a protecting group onto the nitrogen atom of the compound represented by formula (III). The present invention provides a method for efficiently producing an optically active N-(halopropyl)amino acid derivative.

    摘要翻译: 本发明提供一种光学活性N-(卤代丙基)氨基酸衍生物的制造方法,其中,该方法包括以下步骤:通过使式(I)表示的光学活性丙氨酸酯或式 其盐(以下有时简称为“丙氨酸酯”)与式(II)表示的卤代丙烷; 通过在式(III)表示的化合物的氮原子上引入保护基,得到由式(Ⅳ)表示的光学活性的N-(卤代丙基)氨基酸衍生物。 本发明提供了有效制备光学活性N-(卤代丙基)氨基酸衍生物的方法。

    Bracket for mounting speaker
    7.
    发明公开
    Bracket for mounting speaker 审中-公开
    用于安装扬声器的支架

    公开(公告)号:EP1282332A2

    公开(公告)日:2003-02-05

    申请号:EP02011776.8

    申请日:2002-05-27

    IPC分类号: H04R1/02 B60R11/02

    摘要: The present invention provides a bracket for mounting a speaker that allows a speaker to be easily mounted and removed without impairing the acoustic characteristics of the speaker used for a specific use such as car audio equipment, and that can reduce the possibility of the speaker being damaged during mounting or removal. The bracket of the present invention includes a base plate; and a plurality of hooks that are provided on one face of the base plate and can engage with a part of an edge of a speaker frame in cooperation with a mounting member from the back of the speaker.

    摘要翻译: 本发明提供一种用于安装扬声器的支架,其允许在不损害用于诸如汽车音频设备的特定用途的扬声器的声学特性的情况下容易地安装和移除扬声器,并且能够减少扬声器损坏的可能性 在安装或拆卸期间。 本发明的支架包括基板; 以及多个钩,其设置在基板的一个面上,并且能够与扬声器背面的安装构件协作而与扬声器框架的边缘的一部分接合。