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383 条记录 (耗时 0.02 秒)

    QUADRATIC NONLINEAR OPTICAL ELEMENT
    142.
    发明公开
    QUADRATIC NONLINEAR OPTICAL ELEMENT 失效
    QUADRATISCHES NICHTLINEAR-OPTISCHES ELEMENT。

    公开(公告)号：EP0431200A1

    公开(公告)日：1991-06-12

    申请号：EP90909848.5

    申请日：1990-06-28

    申请人： TORAY INDUSTRIES, INC.

    发明人： GOTO, Tetsuya ,  TSUNEKAWA, Tetsuya ,  FUKUDA, Seiji ,  MATAKI, Hiroshi

    IPC分类号： G02F1/35 ,  C07C251/24

    CPC分类号： G02F1/3611 ,  C07C251/24 ,  C30B7/00 ,  C30B11/00 ,  C30B23/02 ,  C30B29/54

    摘要： A high-performance quadratic nonlinear optical element which can exhibit a large nonlinear optical effect. The element contains a part which comprises a non-centrosymmetric monoclinic crystal, belonging to the space group Cc and the point group #9, of 4'-nitrobenzylidene-3-alkanoylamino-4-methoxyaniline of formula (I) or derivatives thereof wherein at least part of the hydrogen atoms are deuterated, and which is provided with at least one substantially optically flat surface which admits or transmits rays of light having a large electric oscillation vector component in the direction of the axis of maximum absorption present in the ac face of a nuclear crystal. In formula (I) R represents a C₁ or C₂ alkyl or haloalkyl.

    摘要翻译： 一种高性能二次非线性光学元件，可以表现出非常大的非线性光学效应。 该元素包含属于式（I）的4'-硝基亚苄基-3-烷酰基氨基-4-甲氧基苯胺或其衍生物的属于空间群Cc和点群＃9的非中心对称单斜晶体的部分，其中在 至少部分氢原子被氘代化，并且具有至少一个基本上光学上平坦的表面，该表面允许或透射具有大的电振荡矢量分量的光， 核晶体。 在式（I）中，R表示C1或C2烷基或卤代烷基。

    DERIVATIVES OF HYPOCRELLIN WITH PERI-POSITION AND 2-POSITION SIMULTANEOUSLY SUBSTITUTED BY AMINO GROUPS
    146.
    发明公开
    DERIVATIVES OF HYPOCRELLIN WITH PERI-POSITION AND 2-POSITION SIMULTANEOUSLY SUBSTITUTED BY AMINO GROUPS 审中-公开

    公开(公告)号：EP3680230A1

    公开(公告)日：2020-07-15

    申请号：EP18854509.9

    申请日：2018-09-05

    申请人： Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences

    发明人： WANG, Pengfei ,  WU, Jiasheng ,  LIU, Weimin ,  ZHENG, Xiuli ,  GU, Ying

    IPC分类号： C07C221/00 ,  C07C225/32 ,  C07C249/02 ,  C07C251/24 ,  A61K41/00 ,  A61P35/00

    摘要： The present invention discloses a hypocrellin derivative substituted both in a peri-position and in a 2-position by an amino, and a preparation method and use thereof. A general structural formula of the derivative is as represented by formulas I-a to I-d:

    The hypocrellin derivative substituted both in a peri-position and in a 2-position by an amino prepared in the present invention has a maximum absorption wavelength of 600-650 nm and a molar extinction coefficient reaching about 20000-40000 M -1 cm -1 . Compared with unmodified hypocrellin or hypocrellin having only a 2-position modified, an absorption spectrum of the derivative is significantly red-shifted and the molar extinction coefficient is greatly improved, and the derivative can efficiently produce reactive oxygen species such as singlet oxygen in a photosensitive condition. In the same condition, the hypocrellin derivative substituted both in a peri-position and in a 2-position by an amino involved in the present invention, when used as a photosensitizer, has a stronger ability to photo-dynamically inactivate tumor cells than the first and second generation commercial photosensitizers.