Volume 123, Issue 45 pp. 10878-10881
Zuschrift

Conjugate Addition/Cyclization Sequence Enables Selective and Simultaneous Fluorescence Detection of Cysteine and Homocysteine

Dr. Xiaofeng Yang

Corresponding Author

Dr. Xiaofeng Yang

Department of Chemistry, Portland State University, 1719 SW 10 Ave, Portland, OR 97201 (USA) http://www.pdx.edu/chem/profile/dr-robert-strongin

Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Institute of Analytical Sciences, College of Chemistry & Materials Science, Northwest University, Xi'an 710069 (P.R. China)

Department of Chemistry, Portland State University, 1719 SW 10 Ave, Portland, OR 97201 (USA) http://www.pdx.edu/chem/profile/dr-robert-stronginSearch for more papers by this author
Yixing Guo

Yixing Guo

Department of Chemistry, Portland State University, 1719 SW 10 Ave, Portland, OR 97201 (USA) http://www.pdx.edu/chem/profile/dr-robert-strongin

Search for more papers by this author
Prof. Robert M. Strongin

Corresponding Author

Prof. Robert M. Strongin

Department of Chemistry, Portland State University, 1719 SW 10 Ave, Portland, OR 97201 (USA) http://www.pdx.edu/chem/profile/dr-robert-strongin

Department of Chemistry, Portland State University, 1719 SW 10 Ave, Portland, OR 97201 (USA) http://www.pdx.edu/chem/profile/dr-robert-stronginSearch for more papers by this author
First published: 20 September 2011
Citations: 73

Support from the National Institutes of Health through award RO1 EB002044 is gratefully acknowledged. X.F.Y. acknowledges financial support from the China Scholarship Council.

Graphical Abstract

Ähnlich, doch nicht gleich: Ein Benzothiazolderivat kann Cystein (Cys) und Homocystein (Hcy) parallel in neutralen Medien nachweisen. Bei dieser Methode wird zunächst ein Thioether gebildet, bevor eine Lactamcyclisierung unter Freisetzung von 2-(2′-Hydroxy-3′-methoxyphenyl)benzothiazol (HMBT) erfolgt. Der unterschiedlich schnelle Ringschluss ermöglicht die Identifizierung von Cys und Hcy auf spektralem oder kinetischem Weg.

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