4.8 Article

Styryl Conjugated Coumarin Caged Alcohol: Efficient Photorelease by Either One-Photon Long Wavelength or Two-Photon NIR Excitation

Journal

ORGANIC LETTERS
Volume 14, Issue 2, Pages 572-575

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol203188h

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Funding

  1. NSFC [20903039, 21073062]
  2. Chen Guang project [09CG25]
  3. Shanghai Rising-star program [10QA1401600]
  4. Fundamental research funds for the central university

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The synthesis and photorelease properties of a new phototrigger for alcohols are described. Compared to ester 4 caged by the reported [7-(diethylamino)coumarin-4-yl]methoxycarbonyl (DEACM) phototrigger, the caged ester 3 shows an efficient single-photon photolysis efficiency upon irradiation of long wavelength light (lambda = 475 nm) and a stronger two-photon photolysis sensitivity with 800 nm laser light. Its promising properties and the efficient photorelease of adenosine make it very useful as a caging group for biological applications.

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