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    • 81. 发明授权
    • Na channels, disease, and related assays and compositions
    • Na通道,疾病和相关测定法和组合物
    • US08816095B2
    • 2014-08-26
    • US13059182
    • 2009-08-17
    • Milton L. BrownScott GrindrodThomas H. WallsTodd HansenSimeng SuyMikell A. Paige
    • Milton L. BrownScott GrindrodThomas H. WallsTodd HansenSimeng SuyMikell A. Paige
    • C07D233/76A61K31/69
    • A61K31/4164C07D209/14C07D233/72C07D317/26
    • Disclosed are molecules and their synthesis, for use in blocking gated ion channels such as voltage-gated sodium channels (VGSCs) and prostate voltage sodium channels (PVSCs). These inhibitors have superior blocking efficacy, for instance in displacing the radioligand [3H]-Batrachotoxin-B ([3H]-BTX-B) that binds to site 2 of a VGSC. The molecules of the invention comprise a moiety which increases the binding affinity of molecules for the protein binding site in prostate cancer cells (PCs), and which is also fluorescent. In one embodiment the invention molecules are an inhibition system that can be used to target over-abundant or hyperactive VGSCs selectively in pain, epilepsy or prostate cancer, inhibiting the proliferation of PCs. The fluorescent moiety also facilitates screening, tracking, and pharmacodynamic studies of the drug in a biological system both in vitro and in vivo.
    • 公开了分子及其合成,用于阻断门控离子通道如电压门控钠通道(VGSC)和前列腺电压钠通道(PVSC)。 这些抑制剂具有优异的阻断效能,例如置换与VGSC的位点2结合的放射性配体[3 H] -Batrachotoxin-B([3 H] -BTX-B)。 本发明的分子包含增加前列腺癌细胞(PC)中蛋白质结合位点的分子的结合亲和力的部分,其也是荧光的。 在一个实施方案中,本发明分子是可用于在疼痛,癫痫或前列腺癌中选择性地靶向过量或过度活跃的VGSC的抑制系统,从而抑制PC的​​增殖。 荧光部分还有助于药物在体外和体内生物系统中的筛选,跟踪和药效学研究。
    • 90. 发明授权
    • Crystal form of 5-hydroxy-1-methylhydantoin
    • 晶体形式的5-羟基-1-甲基乙内酰脲
    • US07858806B2
    • 2010-12-28
    • US12498967
    • 2009-07-07
    • Kaoru OkamotoNaoharu NishimuraAkira Ishii
    • Kaoru OkamotoNaoharu NishimuraAkira Ishii
    • C07D233/80
    • C07D233/72
    • Conventional I-form crystals of 5-hydroxy-1-methylhydantoin contain, remaining therein in a considerable amount, the organic solvent used in a purification step. In contrast, in II-form crystals, the amount of the organic solvent remaining therein is smaller than the detection limit. Namely, the II-form crystals contain substantially no residual organic solvent. The novel II-form crystals of 5-hydroxy-1-methylhydantoin obtained through recrystallization from water not only contain substantially no residual organic solvent, but also have a high bulk density and are hence advantageous for pharmaceutical preparation. They further have properties advantageous for production, such as low adhesion. The crystals are significantly useful as a material for medicines required to have high safety, such as drugs for renal insufficiency.
    • 常规的5-羟基-1-甲基乙内酰脲的I型晶体在其中保留相当量的纯化步骤中使用的有机溶剂。 相反,在II型晶体中,其中残留的有机溶剂的量小于检测限。 即,II型晶体基本上不含残留的有机溶剂。 通过从水中重结晶获得的5-羟基-1-甲基乙内酰脲的新型II型晶体不仅基本上不含有残留的有机溶剂,而且还具有高的堆积密度,因此对于药物制剂是有利的。 它们还具有有利于生产的性质,例如低粘附性。 该晶体作为具有高度安全性的药物的材料,例如用于肾功能不全的药物是显着有用的。