| Photorelease of amino acids from novel thioxobenzo[f]benzopyran ester conjugates. | |
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MedLine Citation:
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PMID: 21739147 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Aiming at the enhancement of the performance of (9-methoxy-3-oxo-3H-benzo[f]benzopyran-1-yl) methyl ester as photocleavable protecting group for the carboxylic acid function at long-wavelengths, 9-methoxy-3-thioxo-3H-benzo[f]benzopyran-L: -valine and L: -phenylalanine model conjugates were prepared through a thionation reaction of the corresponding oxo-benzobenzopyrans. These thioxobenzobenzopyran derivatives were subjected to photocleavage reactions in the same conditions as the parent oxo-benzobenzopyrans at different wavelengths of irradiation, and photocleavage data were obtained. It was found that the exchange of the carbonyl by a thiocarbonyl group enhanced the performance of the heterocyclic protecting group at 419 nm by improving the photolysis rates, making it an appropriate group for practical applications at long wavelengths. |
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Authors:
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Ana M Piloto; Ana M S Soares; Susana P G Costa; M Sameiro T Gonçalves |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-8 |
Journal Detail:
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Title: Amino acids Volume: - ISSN: 1438-2199 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-8 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9200312 Medline TA: Amino Acids Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Centro de Química, Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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