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2005
Quinoline derivatives
R 0410
Design, Microwave-Assisted Synthesis, and Photophysical Properties of Small
Organic Antennas for Luminescence Resonance Energy Transfer. —
32- 146 Molecule
Compound (IIIa), commercially known as Carbostyril 124, is prepared in a drastically
reduced reaction time by use of microwave irradiation. Highly fluorescent compound
(IIIa) is extensively applied as small antenna for luminescence resonance energy transfer (LRET). With a view to obtain organic antennas with longer maximum absorbance
than compound (IIIa) for application in living cells, 18 carbostyril analogues are prepared by the same method. Compounds (IIIb) and (IIIc) exhibit the greatest shifts in
maximum absorbance and emission wavelengths compared to (IIIa) and both compounds show an increased difference between excitation and emission wavelengths,
which are ca. 2-fold greater than for (IIIa). — (LEE, H.-K.; CAO, H.; RANA*, T. M.;
J. Comb. Chem. 7 (2005) 2, 279-284; Program Chem. Biol., Dep. Biochem. Mol.
Pharmacol., Univ. Mass. Med. Sch., Worcester, MA 01605, USA; Eng.) — Klein
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