The present invention generally relates to various compounds that are useful as α-synuclein ligands. The invention further relates to methods of using these compounds and their radiolabeled analogs for the detection of synucleinopathies, including Parkinson's disease (PD).
for the ortholithiation of 3-aryl and 3-styryl furans has been uncovered wherein lithiation occurs preferentially at the sterically encumbered 2-position. The results are attributed, at least in part, to stabilization of the intermediate furyl anion by through-space donation of pi-electron density from the substituent appended at the 3-position to the lithium cation. This ortholithiation reaction
A new insight into the push‐pull effect of substituents via the stilbene‐like model compounds
作者:Chaotun Cao、Zhao Zeng、Chenzhong Cao
DOI:10.1002/poc.4319
日期:2022.4
2-diphenylpropylenes and substituted cinnamyl anilines as stilbene-like modelcompounds to investigate the factors dominating the push-pull effect of substituents via using the nuclear magnetic resonance chemical shift of bridging bond carbon atoms. It is demonstrated that the maximum push-pull effect is not always between the strong electron-donating D and strong electron-accepting A groups in D-π-A compounds. The action
在本文中,作者报告了 1-吡啶基-2-芳基乙烯、1-呋喃基-2-芳基乙烯、1,2-二苯基丙烯和取代的肉桂基苯胺作为类二苯乙烯的模型化合物,以研究主导取代基推挽效应的因素通过使用桥键碳原子的核磁共振化学位移。证明了最大推挽效应并不总是在 D-π-A 化合物中的强给电子 D 和强电子接受 A 基团之间。D-π-A化合物中取代基推挽作用的作用方式主要由其分子母体结构决定。组的场/感应效应和共轭效应对推挽效应的贡献是不相等的。当 D-π-A 母体分子在一个平面上时,组的场/感应效应对推挽效应的影响大于或接近其共轭效应的影响。虽然母体分子是空间扭曲的,但推挽效应主要取决于基团的共轭效应。本文的结果可以为我们提供关于取代基推拉效应的新见解。
Determining the excited-state substituent constants of furyl and thienyl groups
作者:Junyan Qu、Chao-Tun Cao、Chenzhong Cao
DOI:10.1002/poc.3799
日期:2018.5
and their wavelength of absorption maximum λmax was recorded. For the wavenumber νmax (cm−1, νmax = 1/λmax) of the obtained λmax, a quantitative correlation analysis was performed, and 6 excited‐statesubstituent constants of groups X were obtained by means of curve‐fitting method. Taking the νmax values of total 90 compounds of styrene derivatives as a data set (including 25 compounds from reference
The present invention generally relates to various compounds that are useful as α-synuclein ligands. The invention further relates to methods of using these compounds and their radiolabeled analogs for the detection of synucleinopathies, including Parkinson's disease (PD).