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    • 3. 发明申请
    • PROCESS FOR THE PREPARATION OF ESTERS OR LACTONES
    • 制备胚芽或乳酪的方法
    • WO00053593A1
    • 2000-09-14
    • PCT/JP2000/000988
    • 2000-02-22
    • B01J27/10B01J27/125B01J27/135B01J31/02C07C67/42C07D307/33C07D313/04C07D313/06C07D315/00
    • C07D307/33C07D313/06C07D315/00
    • A process for the preparation of esters or lactones, which comprises reacting a ketone represented by general formula (1) (wherein Ra and Rb are each independently an organic group having a carbon atom at the position where the carbonyl carbon atom adjacent thereto is bonded, or alternatively Ra and Rb together with the carbonyl carbon atom may form a ring) with hydrogen peroxide in the presence of a compound containing a metallic element selected from among Group 3, 13, 14 and 15 metallic elements of the periodic table to thereby obtain a compound represented by general formula (2) (wherein Ra and Rb are each independently an organic group having a carbon atom at the position where the carbonyl carbon atom or oxygen atom adjacent thereto is bonded, or alternatively Ra and Rb together with the carbonyl carbon atom and the oxygen atom may form a ring). This process makes it possible to convert ketones to the corresponding esters or lactones in high yield by using hydrogen peroxide.
    • 一种制备酯或内酯的方法,其包括使由通式(1)表示的酮(其中Ra和Rb各自独立地为与其相邻的羰基碳原子键合的位置具有碳原子的有机基团反应, 或者Ra和Rb与羰基碳原子一起形成环)与过氧化氢在含有选自元素周期表第3,13,14和15族金属元素的金属元素的化合物存在下反应,从而得到 由通式(2)表示的化合物(其中R a和R b各自独立地为与羰基碳原子或与其相邻的氧原子键合的位置具有碳原子的有机基团,或者Ra和Rb与羰基碳原子一起 并且氧原子可以形成环)。 该方法可以通过使用过氧化氢以高收率将酮转化为相应的酯或内酯。
    • 10. 发明申请
    • HIGH THROUGHPUT BIOASSAY FOR IDENTIFYING SELECTIVE TRKA RECEPTOR AGONISTS, AND GAMBOGIC AMIDE, A SELECTIVE TRKA AGONIST WITH NEUROPROTECTIVE ACTIVITY
    • 用于识别选择性TRKA受体激动剂的高通量生物传感器和游离氨基酸,具有神经保护活性的选择性TRKA激动剂
    • WO2008148008A1
    • 2008-12-04
    • PCT/US2008/064723
    • 2008-05-23
    • EMORY UNIVERSITYYE, Keqiang
    • YE, Keqiang
    • A61K31/352A61K31/45A61K31/497C07D313/06C07D311/78
    • C07D493/10
    • A high-throughput screening assay for identifying small molecule agonists for the TrkA receptor is described. One such agonist, gambogic amide, selectively binds to TrkA but not TrkB or C, robustly induces its tyrosine phosphorylation and downstream signaling activation including Akt and MAP kinases. Further, it strongly prevents glutamate-induced neuronal cell death and provokes prominent neurite outgrowth in PC 12 cells. Gambogic amide specifically interacts with the cytoplasmic juxtamembrane domain of TrkA receptor and triggers its dimerization. Administration of this molecule in mice substantially diminishes Kainic acid-triggered neuronal cell death and decreases infarct volume in transient middle cerebral artery occlusion (MCAO) model of stroke. Thus, gambogic amide and other selective TrkA agonists can provide effective treatments for debilitating neurodegenerative diseases and provide neuroprotection from patients suffering from stroke or other ischemic events.
    • 描述了用于鉴定TrkA受体的小分子激动剂的高通量筛选试验。 一种这样的激动剂,吡喃酰胺选择性结合TrkA而不是TrkB或C,可以强烈诱导其酪氨酸磷酸化和下游信号激活,包括Akt和MAP激酶。 此外,它强烈地防止谷氨酸诱导的神经元细胞死亡并且引起PC12细胞中突出的神经突生长。 甘草酰胺特异性地与TrkA受体的细胞质结膜结构域相互作用并引发其二聚化。 该分子在小鼠中的施用基本上减少了Kainic酸触发的神经元细胞死亡,并减少了中风大脑中动脉闭塞(MCAO)模型中的梗死体积。 因此,弓形酰胺和其他选择性TrkA激动剂可以为衰老性神经变性疾病提供有效的治疗,并从患有卒中或其他缺血事件的患者提供神经保护。