可以动态扩展其空隙以供客人吸收的多孔有机框架仍然难以设计。挑战来自于在刚性和灵活性之间找到平衡。保持框架需要刚性,可逆膨胀/收缩需要灵活性。在此,我们引入硫酸氢根阴离子簇作为软接头来构建单晶氢键交联有机骨架 H C OF-6。在吸收客体分子后,H C OF-6 的阴离子簇被破坏,使晶体迅速膨胀(<40 分钟)至其原始长度的两倍以上。去除这些客体恢复了阴离子簇和 H C的结晶度OF-6 快速(<10 分钟)。这些客体引起的材料尺寸膨胀和收缩是高度可逆的,动态阴离子簇解离-再结合通过分子动力学模拟和固态核磁共振实验得到证实。客体诱导的 H C OF-6 尺寸变化突出了一种通过引入阴离子簇来合成动态骨架材料的新方法。
可以动态扩展其空隙以供客人吸收的多孔有机框架仍然难以设计。挑战来自于在刚性和灵活性之间找到平衡。保持框架需要刚性,可逆膨胀/收缩需要灵活性。在此,我们引入硫酸氢根阴离子簇作为软接头来构建单晶氢键交联有机骨架 H C OF-6。在吸收客体分子后,H C OF-6 的阴离子簇被破坏,使晶体迅速膨胀(<40 分钟)至其原始长度的两倍以上。去除这些客体恢复了阴离子簇和 H C的结晶度OF-6 快速(<10 分钟)。这些客体引起的材料尺寸膨胀和收缩是高度可逆的,动态阴离子簇解离-再结合通过分子动力学模拟和固态核磁共振实验得到证实。客体诱导的 H C OF-6 尺寸变化突出了一种通过引入阴离子簇来合成动态骨架材料的新方法。
Amines useful in producing pharmaceutically active CNS compounds
申请人:Upjohn Company
公开号:US05099019A1
公开(公告)日:1992-03-24
Disclosed are .DELTA..sup.9(11) -steroids (VI) and amino substituted steroids (XI) which contain an amino group attached to the terminal carbon atom of the C.sub.17 -side chain, more particularly amino steroids (Ia and Ib), aromatic steroids (II), .DELTA..sup.16 -steroids (IIIa and IIIb), reduced A-ring steroids (IV), .DELTA..sup.17(20) -steroids (Va and Vb) and .DELTA..sup.9(11) -steroids (VI) which are useful as pharmaceutical agents for treating a number of conditions.
The aromatic amines (I), alkyl amines (II), bicyclic amines (III). ##STR1## cycloalkyl amines (IV), aromatic bicyclic amines (V), hydroquinone amines (VI), quinone amines (VII), amino-ethers (VIII) and bicyclic amino ethers (IX) are useful as pharmaceutical agents for treating a number of conditions including spinal trauma, mild and/or moderate to severe head injury, etc. Also disclosed is a method of treatment using the 3,4-dihydrobenzopyrans (XI).
Urea derivative useful as an anti-cancer agent and process for preparing same
申请人:Chaconne Nsi Co., Ltd.
公开号:US20020019389A1
公开(公告)日:2002-02-14
The present invention relates to a novel urea derivative represented by the following formula (I), which is useful as an anti-cancer agent:
1
its pharmaceutically acceptable acid addition salt or stereoisomer, in which X, Y, B and Het have the meaning as defined in the specification, and to a process for preparing the compound of formula (I) and an anti-cancer composition comprising the compound of formula (I) as an active ingredient.
Amino-9,10-secosteroids useful for treating head injury, spinal cord
申请人:The Upjohn Company
公开号:US04996318A1
公开(公告)日:1991-02-26
The amino-9,10-secosteroids ##STR1## of the present invention contain an amino group attached to the terminal carbon atom of the C.sub.17 -side chain and are useful as pharmaceutical agents for treating a number of conditions including spinal trauma, mild and/or moderate to severe head injury, etc.