Radiolabeled pyridinyl analogues of dibenzylideneacetone as β-amyloid imaging probes
作者:Xiaomei Cui、Xiaoyang Zhang、Cheng Peng、Jiapei Dai、Boli Liu、Mengchao Cui
DOI:10.1039/c6ra05168e
日期:——
In continuation of our investigation of the dibenzylideneacetone scaffold as Aβ imaging probes, a series of derivatives containing pyridine rings with lower lipophilicity was synthesized and evaluated.
在我们对二苯基丙酮骨架作为Aβ成像探针的研究中,合成并评估了一系列含有吡啶环且疏水性较低的衍生物。
Self-assembly of indolocarbazole-containing macrocyclic molecules
A successful approach for the synthesis of indolocarbazole-containing macrocycles based upon π–π stacking preorganization of indolocarbazole planes and click-chemistry reactions has been developed. The macrocycles are able to form folded structures with the help of hydrogen-bonding and π–π stacking interactions. Two of the receptors were successfully characterized by single-crystal X-ray diffraction analysis. Our results confirmed that they showed different interesting self-assembly with the anions due to the N–H⋯X− and the triazole C–H⋯X− hydrogen-bonding.
基于吲哚并咔唑平面的π-π堆积预组织和点击化学反应,开发了一种成功合成含吲哚并咔唑大环化合物的方法。大环化合物能够借助氢键和π-π堆积相互作用形成折叠结构。通过单晶 X 射线衍射分析成功地表征了其中两种受体。我们的结果证实,由于 N–H⋯X− 和三唑 C–H⋯X− 氢键,它们与阴离子表现出不同的有趣的自组装。
Construction of an interpenetrated structure of macrocycles
作者:Yingjie Zhao、Yuliang Li、Yongjun Li、Haiyan Zheng、Xiaodong Yin、Huibiao Liu
DOI:10.1039/c0cc01120g
日期:——
The construction of an interpenetrated structure of macrocycles by a CuAAC "click" reaction was achieved and the binding selectivity of indolocarbazole for a chloride anion was enhanced upon catenanation.
通过CuAAC“点击”反应构建了大环的互穿结构,并且在连接时增强了吲哚并咔唑对氯离子的结合选择性。
FLUORESCENCE LABELING REAGENTS AND USES THEREOF
申请人:Vigh Gyula
公开号:US20130224870A1
公开(公告)日:2013-08-29
Solid phase fluorescent labeling reagents (SPR) are described that simultaneously capture and label analytes, and then efficiently release the labeled-analytes under mild conditions (SCaLER).
The deposition of β-amyloid (Aβ) in the brain is a pathologic hallmark of Alzheimer’sdisease (AD), appearing years before the onset of symptoms, and its detection is incorporated into clinical diagnosis. Here, we have discovered and developed a class of diaryl-azine derivatives for detecting Aβplaques in the AD brain using PETimaging. After a set of comprehensive preclinical assessments, we screened
大脑中 β-淀粉样蛋白 (Aβ) 的沉积是阿尔茨海默病 (AD) 的病理标志,在症状出现前数年出现,其检测已纳入临床诊断。在这里,我们发现并开发了一类二芳基嗪衍生物,用于使用 PET 成像检测 AD 大脑中的 Aβ 斑块。经过一系列全面的临床前评估后,我们筛选出一种有前途的 Aβ-PET 示踪剂 [ 18 F] 92,它对 Aβ 聚集体具有高结合亲和力,与 AD 脑切片具有显着结合能力,并且在啮齿动物中具有最佳脑药代动力学特性和非人类灵长类动物。首次人体 PET 研究表明 [ 18 F] 92显示出低白质摄取并且可以与 Aβ 病理学结合以区分 AD 和健康对照受试者。所有这些结果都支持 [ 18 F] 92可能成为一种有前途的 PET 示踪剂,用于可视化 AD 患者的 Aβ 病理。