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Dąbrowski JM. Reactive Oxygen Species in Photodynamic Therapy: Mechanisms of Their Generation and Potentiation. ADVANCES IN INORGANIC CHEMISTRY 2017. [DOI: 10.1016/bs.adioch.2017.03.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Zhang N, Reddy KR, Jiang J, Taniguchi M, Sommer RD, Lindsey JS. Elaboration of an unexplored substitution site in synthetic bacteriochlorins. J PORPHYR PHTHALOCYA 2015. [DOI: 10.1142/s1088424615500534] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The ability to introduce substituents at designated sites about the perimeter of synthetic bacteriochlorins – analogs of bacteriochlorophylls of bacterial photosynthesis – remains a subject of ongoing study. Here, the self-condensation of a dihydrodipyrrin-dioxolane affords a 5-[2-(trimethylsiloxy)ethoxy]bacteriochlorin. Like a 5-methoxybacteriochlorin, the latter undergoes regioselective bromination at the 15-position, directed by the distal 5-alkoxy group. On the other hand, attempted bromination of a bacteriochlorin bearing a 5-(2-hydroxyethoxy) group resulted in intramolecular ether formation with the adjacent β-pyrroline position to give an annulated dioxepine ring (confirmed by single-crystal X-ray structural analysis). The hydroxyethoxy group at the 5-position can be derivatized by acylation. In addition, the installation of auxochromes (methoxycarbonyl, phenylethynyl) at the β-pyrrole rings causes a substantial bathochromic shift of the long-wavelength absorption band (812 nm) and companion fluorescence emission band (821 nm). Taken together, the modification of the 5-substituent complements existing methods for installing a single substituent on the bacteriochlorin macrocycle.
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Affiliation(s)
- Nuonuo Zhang
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA
| | - Kanumuri Ramesh Reddy
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA
| | - Jianbing Jiang
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA
| | - Masahiko Taniguchi
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA
| | - Roger D. Sommer
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA
| | - Jonathan S. Lindsey
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA
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Roxin Á, Chen J, Paton AS, Bender TP, Zheng G. Modulation of Reactive Oxygen Species Photogeneration of Bacteriopheophorbide a Derivatives by Exocyclic E-Ring Opening and Charge Modifications. J Med Chem 2013; 57:223-37. [DOI: 10.1021/jm401538h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Áron Roxin
- Department
of Pharmaceutical Sciences, Leslie L. Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario M5S 3M2, Canada
- Ontario Cancer Institute and Techna Institute, UHN, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - Juan Chen
- Ontario Cancer Institute and Techna Institute, UHN, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - Andrew S. Paton
- Department
of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada
| | - Timothy P. Bender
- Department
of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada
| | - Gang Zheng
- Department
of Pharmaceutical Sciences, Leslie L. Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario M5S 3M2, Canada
- Ontario Cancer Institute and Techna Institute, UHN, 101 College Street, Toronto, Ontario M5G 1L7, Canada
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