手性烷基链被广泛用于确保溶液处理的有机半导体(OSC)的溶解性,而由于几种立体异构体在一种材料中混合而引起的固有缺陷经常被忽略。在本文中,通过将光学纯的侧基引入到核扩展的萘二酰亚胺(NDI-DTYM2)的分子骨架中,设计并合成了对映纯半导体材料(1- R / 1- S)和相应的外消旋物(1- rac)。研究对映纯和外消旋OSC对有机场效应晶体管(OFET)中电荷传输的影响。令人惊讶的是,电子迁移率增加了2-4倍(从0.15 cm 2 V -1 s开始)在固溶处理中发现铸态器件的-1至0.6 cm 2 V -1 s -1和热退火器件的0.42 cm 2 V -1 s -1至0.98 cm 2 V -1 s -1)只需通过将活性层材料从外消旋形式转变为对映纯形式,即可实现OFET。掠入射广角X射线散射(GIWAXS),原子力显微镜(AFM)并用于研究1- R, 1- S和1- rac的结晶,分
Camptothecin derivatives as chemoradiosensitizing agents
申请人:Yang Li-Xi
公开号:US20070093432A1
公开(公告)日:2007-04-26
Camptothecin-based compounds are useful for treating a neoplasm in mammalian subjects by administering such compound to the subjects in combination with radiotherapy, i.e., the treatment of tumors with radioactive substances or radiation from a source external to the subject. Camptothecin-based compounds are modified by positioning at least one electron-affinic group around the camptothecin structure to enhance their value in combination with radiotherapy. New Camptothecin-based compounds are disclosed that are useful for treating cancer by administering the novel compounds alone or in combination with radiotherapy.
[EN] EPIANDROSTERONE AND/OR ANDROSTERONE DERIVATIVES AND METHOD OF USE THEREOF<br/>[FR] DÉRIVÉS D'ÉPIANDROSTÉRONE ET/OU D'ANDROSTÉRONE ET LEUR PROCÉDÉ D'UTILISATION
申请人:SUTTER WEST BAY HOSPITALS DOING BUSINESS AS CALIFORNIA PACIFIC MEDICAL CT
公开号:WO2012134446A1
公开(公告)日:2012-10-04
Disclosed herein are epiandrosterone and androsterone derivatives of Formula (II), process of preparation thereof, pharmaceutical compositions thereof, and methods of use thereof.
本文揭示了式(II)的雄烯酮和雄甾酮衍生物,其制备方法,药物组合物以及使用方法。
Androsterone Derivatives and Method of Use thereof
申请人:Yang Li-Xi
公开号:US20090105202A1
公开(公告)日:2009-04-23
The disclosure provides androsterone derivatives. The derivatives of the disclosure are useful in the treatment of androgen- and estrogen-associated diseases and disorders, including breast cancer.
(20) esters of camptothecin analogs are provided. The compounds are (20) esters of an aminoalkanoic acid or an imidoalkanoic acid and homocamptothecin, which is optionally substituted at the 7, 9, 10, 11, and 12 positions of the homocamptothecin ring. The compounds are useful for treating cancer.
(20S) esters of camptothecin analogs are provided. The compounds are (20S) esters of an aminoalkanoic acid or an imidoalkanoic acid and camptothecin, which is optionally substituted at the 7, 9, 10, 11, and 12 positions of the camptothecin ring. The compounds are useful for treating cancer.