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    • 1. 发明授权
    • Dendritic amplifier molecules having multiple terminal active groups
stemming from a benzyl core group
    • 树枝状放大器分子具有来自苄基核心基团的多个末端活性基团
    • US5567411A
    • 1996-10-22
    • US316787
    • 1994-09-29
    • John F. W. KeanaVladimir MartinWilliam H. Ralston
    • John F. W. KeanaVladimir MartinWilliam H. Ralston
    • A61K49/18A61K49/20C07C291/04C07F11/00A61K49/00A61K51/00C07C69/80C07D207/38C07D209/48C12N9/96
    • A61K49/20A61K49/1812C07C291/04Y10S436/803Y10S436/806Y10T436/24
    • Dendritic derivatives of 3,5-bis(aminomethyl)benzene and aminomethyl benzene core groups are disclosed. In each derivative, termed an "amplifier" because the dendritic structure on each molecule terminates with multiple termini to each of which an "active group" can be attached, the desired effect of the active group per mole is amplified compared to conventional compounds having only one active group per molecule. Amplifier molecules can include a targeting group permitting the molecules to preferentially attach to a particular anatomical or physiological situs. Active groups are any of various pharmacologically or therapeutically active moieties, including moieties useful for magnetic-resonance contrast enhancement. The dendritic structures comprise linkers and branch groups covalently bonded to each other in any of various structural combinations. The amplifiers can be prepared as a solution or mixture with a physiologically compatible carrier for administration to a warm-blooded animal subject. Also disclosed are methods for using the compounds in diagnosis and therapy, such as obtaining a magnetic resonance image of a subject.
    • 公开了3,5-双(氨基甲基)苯和氨基甲基苯核心的树枝状衍生物。 在每个衍生物中,称为“放大器”,因为每个分子上的树突状结构终止于可以连接“活性基团”的每个末端的多个末端,与仅具有仅活性基团的常规化合物相比,活性基团每摩尔的期望效应被扩增 每个分子一个活性基团。 放大器分子可以包括允许分子优先附着到特定解剖或生理部位的靶向基团。 活性基团是各种药理学或治疗活性部分中的任何一种,包括可用于磁共振对比度增强的部分。 树枝状结构包括以各种结构组合中的任何一种彼此共价键合的接头和分支基团。 放大器可以制备成与生理相容的载体的溶液或混合物,用于给温血动物受试者施用。 还公开了在诊断和治疗中使用化合物的方法,例如获得受试者的磁共振图像。
    • 6. 发明授权
    • Tri-and tetra-substituted guanidines and their use as excitatory amino acid antagonists
    • 三取代和四取代的胍和它们作为兴奋性氨基酸拮抗剂的用途
    • US06251948B1
    • 2001-06-26
    • US08468028
    • 1995-06-06
    • Eckard WeberJohn F. W. Keana
    • Eckard WeberJohn F. W. Keana
    • A61K31155
    • B41J2/471A61K31/155C07C279/18C07D311/18G03G15/1675G03G15/168G03G2215/1614G03G2215/1657
    • Tri- and tetra-substituted guanidines which exhibit a high binding affinity to phencyclidine (PCP) receptors and, more preferably, low affinity to the brain sigma receptors. These guanidine derivatives act as non-competitive inhibitors of glutamate induced responses of the NMDA receptor by acting as blockers for the ion channel of the NMDA receptor-ion channel complex. These compounds thus exert neuroprotective activity and are useful in the therapeutic treatment of neuronal loss in hypoxia, hypoglycemia, brain or spinal cord ischemia, and brain or spinal chord trauma as well as being useful for the treatment of epilepsy, Alzheimer's disease, Amyotrophic Lateral Sclerosis, Parkinson's disease, Huntington's disease, Down's Syndrome, Korsakoff's disease and other neurodegenerative disorders.
    • 表现出对苯环利定(PCP)受体的高结合亲和力,更优选对大脑σ受体的低亲和力的三取代和四取代胍基。 这些胍衍生物通过作为NMDA受体 - 离子通道复合物的离子通道的阻断剂,作为NMDA受体的谷氨酸诱导反应的非竞争性抑制剂。 因此,这些化合物发挥神经保护活性,并且可用于治疗缺氧,低血糖,脑或脊髓缺血以及脑或脊髓创伤中的神经元损失,以及用于治疗癫痫,阿尔茨海默病,肌萎缩性侧索硬化症 ,帕金森病,亨廷顿舞蹈病,唐氏综合征,柯萨科夫病和其他神经退行性疾病。