Light-induced cleavage of model phenylalanine conjugates based on coumarins and quinolones
摘要:
In order to evaluate the application of quinolone as a new photocleavable protecting group, in comparison with coumarin, a series of model phenylalanine conjugates were prepared by reaction with chloromethylated O and N heterocycles. The photophysical properties of the resulting ester conjugates were evaluated as well as the photosensitivity under irradiation at 250, 300, 350, and 419 nm. The results obtained showed that the quinolone conjugates were readily photolysed, with complete release of the amino acid in short irradiation times and could be considered a new addition to the family of photocleavable protecting groups for the carboxylic acid function of amino acids.
Light-induced cleavage of model phenylalanine conjugates based on coumarins and quinolones
摘要:
In order to evaluate the application of quinolone as a new photocleavable protecting group, in comparison with coumarin, a series of model phenylalanine conjugates were prepared by reaction with chloromethylated O and N heterocycles. The photophysical properties of the resulting ester conjugates were evaluated as well as the photosensitivity under irradiation at 250, 300, 350, and 419 nm. The results obtained showed that the quinolone conjugates were readily photolysed, with complete release of the amino acid in short irradiation times and could be considered a new addition to the family of photocleavable protecting groups for the carboxylic acid function of amino acids.
The Reaction between o-Aminoazo Compounds and Barbituric Acid. A New Synthesis of Riboflavin
作者:Max Tishler、Karl Pfister、R. D. Babson、Kurt Ladenburg、Ann J. Fleming
DOI:10.1021/ja01198a068
日期:1947.6
1-Methyl-4-carbostyrilcarboxaldehyde and Certain Condensation Products
作者:D. J. Cook、Martha Stamper
DOI:10.1021/ja01198a063
日期:1947.6
Light-induced cleavage of model phenylalanine conjugates based on coumarins and quinolones
作者:Andrea S. C. Fonseca、M. Sameiro T. Gonçalves、Susana P. G. Costa
DOI:10.1007/s00726-010-0492-8
日期:2010.8
In order to evaluate the application of quinolone as a new photocleavable protecting group, in comparison with coumarin, a series of model phenylalanine conjugates were prepared by reaction with chloromethylated O and N heterocycles. The photophysical properties of the resulting ester conjugates were evaluated as well as the photosensitivity under irradiation at 250, 300, 350, and 419 nm. The results obtained showed that the quinolone conjugates were readily photolysed, with complete release of the amino acid in short irradiation times and could be considered a new addition to the family of photocleavable protecting groups for the carboxylic acid function of amino acids.