Charged and neutral small fluorescent molecules based upon the styryl scaffold are useful as imaging agents for misfolded proteins such as amyloid plaque. Charged molecules are prepared using pyrrolidine catalyzed reactions by solution-phase synthesis. Neutral styryl molecules are prepared using acetic anhydride catalyzed reactions, Horner-Emmons reactions or Wittig reactions.
US8158380B2
申请人:——
公开号:US8158380B2
公开(公告)日:2012-04-17
Synthesis and evaluation of stilbene derivatives as a potential imaging agent of amyloid plaques
作者:Myeng Chan Hong、Yun Kyung Kim、Jae Yong Choi、Si Qiang Yang、Hakjune Rhee、Young Hoon Ryu、Tae Hyun Choi、Gi Jeong Cheon、Gwang Il An、Hye Yun Kim
DOI:10.1016/j.bmc.2010.06.044
日期:2010.11.15
bindings and Aβ plaque imaging. Among these molecules, compound 42 meets two critical requirements for imaging agent; high fluorescence responsiveness and strong binding affinity. This compound showed more than 25-fold increase with the dissociation constant of 1.13 ± 0.37 μM. In AD mouse brain tissue, 42 selectively stained Aβ plaque, more specifically peripheral regions of Aβ plaque. This finding demonstrated