214554-43-5Relevant articles and documents
Synthesis, structure, photophysical, electrochemical properties and antibacterial activity of brominated BODIPYs as an inhibitor of DNA gyrase B of S. aureus
Prasannan, DIjo,Sareena, Chennakkandathil,Arunkumar, Chellaiah,Vasu, Suchithra Tharamel
, p. 645 - 654 (2019/05/17)
BODIPYs with 3-thienyl and 4-acetamido phenyl groups substituted at the meso-position are subjected to regioselective bromination using three equivalents of N-bromosuccinimide (NBS) to yield their 2-mono and 2,6-di bromoderivatives. Their photophysical, e
Compositions and methods for treating cancer
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Page/Page column 18-19, (2008/06/13)
The invention features compositions and methods for treating or alleviating a symptom of cancer. The compositions and methods of the invention direct supra-lethal doses of radiation, called Hot-Spots, to virtually all cancer cell types.
Chromophores
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Page/Page column 22; 23, (2010/11/29)
The present invention relates to novel porphyrin and porphyrin-based chromophores and sets of porphyrin and porphyrin-based chromophores, which may be particularly useful in a range of photodynamic applications, including photochemotherapy and fluorescence analysis and imaging. In particular, the present invention provides new and useful porphyrin, chlorin and bacteriochlorin chromophores; methods for the production of such chromophores; and methods for the use of such chromophores in analysis and in medicine.
Rational Syntheses of Porphyrins Bearing up to Four Different Meso Substituents
Rao, Polisetti Dharma,Dhanalekshmi, Savithri,Littler, Benjamin J.,Lindsey, Jonathan S.
, p. 7323 - 7344 (2007/10/03)
Porphyrins bearing specific patterns of substituents are crucial building blocks in biomimetic and materials chemistry. We have developed methodology that avoids statistical reactions, employs minimal chromatography, and affords up to gram quantities of regioisomerically pure porphyrins bearing predesignated patterns of up to four different meso substituents. The methodology is based upon the availability of multigram quantities of dipyrromethanes. A procedure for the diacylation of dipyrromethanes using EtMgBr and an acid chloride has been refined. A new procedure for the preparation of unsymmetrical diacyl dipyrromethanes has been developed that involves (1) monoacylation with EtMgBr and a pyridyl benzothioate followed by (2) introduction of the second acyl unit upon reaction with EtMgBr and an acid chloride. The scope of these acylation methods has been examined by preparing multigram quantities of diacyl dipyrromethanes bearing a variety of substituents. Reduction of the diacyl dipyrromethane to the corresponding dipyrromethane-dicarbinol is achieved with NaBH4 in methanolic THF. Porphyrin formation involves the acid-catalyzed condensation of a dipyrromethane-dicarbinol and a dipyrromethane followed by oxidation with DDQ. Optimal conditions for the condensation were identified after examining various reaction parameters (solvent, temperature, acid, concentration, time). The conditions identified (2.5 mM reactants in acetonitrile containing 30 mM TFA at room temperature for 3B, trans-A2B2, trans-AB2C, cis-A2B2, cis-A2BC, and ABCD were prepared, including >1-g quantities of three porphyrins.