6392-97-8Relevant articles and documents
Oxidative C-H Homocoupling of Push-Pull Benzothiazoles: An Atom-Economical Route to Highly Emissive Quadrupolar Arylamine-Functionalized 2,2′-Bibenzothiazoles with Enhanced Two-Photon Absorption
Fakis, Mihalis,Georgiou, Dimitris,Gyepes, Róbert,Hrobárik, Peter,Nociarová, Jela,Osusky, Patrik,Polyzos, Ioannis,Smolí?ek, Maro?
, p. 5512 - 5517 (2021/07/31)
Copper(II)-catalyzed C-H/C-H coupling of dipolar 2-H-benzothiazoles end-capped with triphenylamine moieties affords highly fluorescent 2,2′-bibenzothiazoles with quadrupolar (D-π-A-π-D) architecture displaying large two-photon absorption (TPA) cross sections (543-1252 GM) in the near-infrared region. The notably higher TPA performance as compared to quadrupolar π-systems with a widely used 2,2′-bipyridine core, along with the ease of the synthesis and chelating N^N ability, makes the title biheteroaryl platform an attractive building block for a large scope of functional dyes exploiting nonlinear optical phenomena.
NOVEL HYDRAZONE DERIVATIVE WITH ARYL OR HETEROARYL GROUP SUBSTITUTED AT TERMINAL AMINE GROUP THEREOF AND USE THEREOF
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, (2021/11/04)
The present invention relates to novel hydrazone derivatives in which a terminal amine group is substituted with an aryl group or a heteroaryl group, and uses thereof.
Design, synthesis and structure-activity relationship of rhenium 2-arylbenzothiazoles as β-amyloid plaque binding agents
Pan, Jinhe,Mason, Neale S.,Debnath, Manik L.,Mathis, Chester A.,Klunk, William E.,Lin, Kuo-Shyan
, p. 1720 - 1726 (2013/04/10)
To continue our efforts toward the development of 99mTc PiB analogs, we have synthesized 24 neutral and lipophilic Re (as a surrogate of 99mTc) 2-arylbenzothiazoles, and explored their structure-activity relationship for binding to Aβ1-40 fibrils. These Re complexes were designed and synthesized via the integrated approach, so their 99mTc analogs would have a greater chance of crossing the blood-brain barrier. While the lipophilicities (log PC18 = 1.59-3.53) of these Re 2-arylbenzothiazoles were all within suitable range, their binding affinities (Ki = 30-617 nM) to Aβ1-40 fibrils varied widely depending on the selection and integration of the tetradentate chelator into the 2-phenylbenzothiazole pharmacophore. For potential clinical applications, further refinement to obtain Re 2-arylbenzothiazoles with better binding affinities (99mTc analogs for more widespread application via the use of SPECT scanners.