Journal
TETRAHEDRON
Volume 64, Issue 13, Pages 3032-3038Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2008.01.032
Keywords
oxobenzopyran; oxobenzobenzopyran; coumarin; gamma-aminobutyric acid (GABA); photocleavable protecting groups
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Fluorescent conjugates of N-benzyloxycarbonyl protected gamma-aminobutyric acid were prepared by coupling to its C-terminus several polyheteroaromatic, based on the oxobenzopyran skeleton (trivially known as coumarin) and polyaromatic labels, such as naphthalene and pyrene. Photophysical properties were evaluated, as well as their behaviour towards photocleavage by irradiation in MeOH/HEPES buffer solution (80:20), in a photochemical reactor at different wavelengths (254, 300, 350 and 419 nm), followed by HPLC/UV monitoring. (C) 2008 Elsevier Ltd. All rights reserved.
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