1
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Thuita DW, Brückner C. Metal Complexes of Porphyrinoids Containing Nonpyrrolic Heterocycles. Chem Rev 2022; 122:7990-8052. [PMID: 35302354 DOI: 10.1021/acs.chemrev.1c00694] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The replacement of one or more pyrrolic building block(s) of a porphyrin by a nonpyrrolic heterocycle leads to the formation of so-called pyrrole-modified porphyrins (PMPs), porphyrinoids of broad structural variability. The wide range of coordination environments (type, number, charge, and architecture of the donor atoms) that the pyrrole-modified frameworks provide to the central metal ions, the frequent presence of donor atoms at their periphery, and their often observed nonplanarity or conformational flexibility distinguish the complexes of the PMPs clearly from those of the traditional square-planar, dianionic, N4-coordinating (hydro)porphyrins. Their different coordination properties suggest their utilization in areas beyond which regular metalloporphyrins are suitable. Following a general introduction to the synthetic methodologies available to generate pyrrole-modified porphyrins, their general structure, history, coordination chemistry, and optical properties, this Review highlights the chemical, electronic (optical), and structural differences of specific classes of metalloporphyrinoids containing nonpyrrolic heterocycles. The focus is on macrocycles with similar "tetrapyrrolic" architectures as porphyrins, thusly excluding the majority of expanded porphyrins. We highlight the relevance and application of these metal complexes in biological and technical fields as chemosensors, catalysts, photochemotherapeutics, or imaging agents. This Review provides an introduction to the field of metallo-PMPs as well as a comprehensive snapshot of the current state of the art of their synthesis, structures, and properties. It also aims to provide encouragement for the further study of these intriguing and structurally versatile metalloporphyrinoids.
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Affiliation(s)
- Damaris Waiyigo Thuita
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Christian Brückner
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
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2
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Hao F, Zhang T, Yu D, Yang X, Jiang HW, Xiao JC, Chen QY. Porphyriynes: 18-π-Conjugated Macrocycles Incorporating a Triple Bond. Org Lett 2022; 24:1716-1721. [PMID: 35199515 DOI: 10.1021/acs.orglett.2c00356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Tetraphenylporphyriyne (Pyne1), a novel porphyrin analogue with a C≡C bond incorporated into an 18-π-conjugated system, has been created via cleavage of the N-confused pyrrolic ring in Ag(III) N-confused tetraphenylporphyrin. The structure of Pyne1 was confirmed by X-ray crystallography and 1H NMR, IR, and UV-vis spectroscopy. The mechanism of cleavage of the N-confused pyrrolic ring was investigated by theoretical calculations. The successful synthesis of other Pynes indicated the generality of this protocol.
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Affiliation(s)
- Fei Hao
- Shandong Provincial Key Laboratory of Molecular Engineering, Qilu University of Technology-Shandong Academy of Science, Ji'nan 250353, China.,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Tian Zhang
- Shandong Provincial Key Laboratory of Molecular Engineering, Qilu University of Technology-Shandong Academy of Science, Ji'nan 250353, China
| | - Donghai Yu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiaodeng Yang
- Shandong Provincial Key Laboratory of Molecular Engineering, Qilu University of Technology-Shandong Academy of Science, Ji'nan 250353, China
| | - Hua-Wei Jiang
- School of Chemistry, South China Normal University, Guangzhou 510006, China
| | - Ji-Chang Xiao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Qing-Yun Chen
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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3
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Le NA, Babu V, Kalt M, Schneider L, Schumer F, Spingler B. Photostable Platinated Bacteriochlorins as Potent Photodynamic Agents. J Med Chem 2021; 64:6792-6801. [PMID: 33988998 DOI: 10.1021/acs.jmedchem.1c00052] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Photodynamic therapy (PDT) is used to treat various cancerous diseases. Recently, we have demonstrated that platinated pyridyl-substituted porphyrins are potent agents for PDT with very high phototoxicity (IC50 down to 17 nM) and excellent phototoxic indices of higher than 5800 (p.i. = IC50(dark)/IC50(light)) [Rubbiani, R. et al., Chem. Commun. 2020, 56, 14373]. However, the absorption of porphyrins is not ideal for the treatment of larger tumors because they essentially do not absorb light between 650 and 850 nm. Herein, we report stable conjugates of a novel bacteriochlorin with cisplatin and transplatin. They exhibit extremely high phototoxicity (IC50 values down to 6 nM, irradiated with a 750 nm LED at a fluence of 5 J/cm2), very low dark toxicity, and thereby extremely high phototoxic indices up to 8300. Based on these exciting results, we believe that platinated bacteriochlorins are promising candidates for further investigation as novel PDT anticancer agents.
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Affiliation(s)
- Ngoc An Le
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Vipin Babu
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Martina Kalt
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Lukas Schneider
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Frank Schumer
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Bernhard Spingler
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
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4
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Banerjee S, Phadte AA. β‐
meso
‐Annulated
meso
‐Tetraarylchlorins: A Study of the Effect of Ring Fusion on Chlorin Conformation and Optical Spectra. ChemistrySelect 2020. [DOI: 10.1002/slct.202002644] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Subhadeep Banerjee
- Department of Chemistry BITS Pilani KK Birla Goa Campus NH 17B Bypass Road, Zuarinagar Goa 403726 India
| | - Apeksha Ashok Phadte
- Department of Chemistry BITS Pilani KK Birla Goa Campus NH 17B Bypass Road, Zuarinagar Goa 403726 India
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5
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Churchill SBS, Sharma M, Brückner C, Zeller M. Crystal structure of 2,3-dimeth-oxy- meso-tetra-kis(penta-fluoro-phen-yl)morpholino-chlorin methyl-ene chloride 0.44-solvate. Acta Crystallogr E Crystallogr Commun 2020; 76:1222-1228. [PMID: 32844003 PMCID: PMC7405590 DOI: 10.1107/s2056989020009093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 07/02/2020] [Indexed: 03/30/2024]
Abstract
The title morpholino-chlorin, C46H16F20N4O3, was crystallized from hexa-ne/methyl-ene chloride as its 0.44 methyl-ene chloride solvate, C46H16F20N4O3·0.44CH2Cl2. The morpholino-chlorin was synthesized by stepwise oxygen insertion into a porphyrin using a 'breaking and mending strategy': NaIO4-induced diol cleavage of the corresponding 2,3-di-hydroxy-chlorin with in situ methanol-induced, acid-catalyzed intra-molecular ring closure of the inter-mediate secochlorins bis-aldehyde. Formally, one of the pyrrolic building blocks was thus replaced by a 2,3-di-meth-oxy-morpholine moiety. Like other morpholino-chlorins, the macrocycle of the title compound adopts a ruffled conformation, and the modulation of the porphyrinic π-system chromophore induces a red-shift of its optical spectrum compared to its corresponding chlorin analog. Packing in the crystal is governed by inter-actions involving the fluorine atoms of the penta-fluoro-phenyl substituents, dominated by C-H⋯F inter-actions, and augmented by short fluorine⋯fluorine contacts, C-F⋯π inter-actions, and one severely slipped π-stacking inter-action between two penta-fluoro-phenyl rings. The solvate methyl-ene chloride mol-ecule is disordered over two independent positions around an inversion center with occupancies of two × 0.241 (5) and two × 0.199 (4), for a total site occupancy of 88%.
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Affiliation(s)
| | - Meenakshi Sharma
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, USA
| | - Christian Brückner
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, USA
| | - Matthias Zeller
- Department of Chemistry, Purdue University, 560 Oval Dr., W. Lafayette, IN 47907-2084, USA
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6
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Pucelik B, Sułek A, Dąbrowski JM. Bacteriochlorins and their metal complexes as NIR-absorbing photosensitizers: properties, mechanisms, and applications. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213340] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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Yoshida K, Osuka A. Pyrrole-Modified Subporphyrins Bearing a Sulfur-Containing Heterocyclic Unit. Helv Chim Acta 2018. [DOI: 10.1002/hlca.201800025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Kota Yoshida
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
| | - Atsuhiro Osuka
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
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8
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Sharma M, Ticho AL, Samankumara L, Zeller M, Brückner C. Conformational Landscapes of Metal(II) Porphyrinato, Chlorinato, and Morpholinochlorinato Complexes. Inorg Chem 2017. [DOI: 10.1021/acs.inorgchem.7b00799] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Meenakshi Sharma
- Department of Chemistry, University of Connecticut, Unit 3060, Storrs, Connecticut 06269-3060, United States
| | - Alexander L. Ticho
- Department of Chemistry, University of Connecticut, Unit 3060, Storrs, Connecticut 06269-3060, United States
| | - Lalith Samankumara
- Department of Chemistry, University of Connecticut, Unit 3060, Storrs, Connecticut 06269-3060, United States
| | - Matthias Zeller
- Department of Chemistry, Youngstown State University, One University
Plaza, Youngstown, Ohio 44555-3663, United States
| | - Christian Brückner
- Department of Chemistry, University of Connecticut, Unit 3060, Storrs, Connecticut 06269-3060, United States
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9
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Yoshida K, Cha W, Kim D, Osuka A. Synthesis of Boron(III)-Coordinated Subchlorophins and Their Peripheral Modifications. Angew Chem Int Ed Engl 2017; 56:2492-2496. [PMID: 28112474 DOI: 10.1002/anie.201612277] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Indexed: 11/07/2022]
Abstract
A pyrrole-cleaving modification to transform boron(III) meso-triphenylsubporphyrin into boron(III) meso-triphenylsubchlorophin has been developed. Boron(III) subchlorophins thus synthesized show absorption and fluorescence spectra that are roughly similar to those of boron(III) subchlorins, but B-methoxy boron(III) subchlorophin showed considerably intensified fluorescence and a small Stokes shift. Peripheral modification reactions of B-phenyl boron(III) subchlorophin such as regioselective nitration with Cu(NO3 )2 ⋅3 H2 O, ipso-substitution reactions of boron(III) α-nitrosubchlorophin with CsF and CsCl, and Pd-catalyzed cross-coupling reactions of boron(III) α-chlorosubchlorophin with arylacetylenes, have been also explored to tune the optical properties of subchlorophins.
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Affiliation(s)
- Kota Yoshida
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Wonhee Cha
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul, 120-749, Korea
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul, 120-749, Korea
| | - Atsuhiro Osuka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
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10
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Yoshida K, Cha W, Kim D, Osuka A. Synthesis of Boron(III)-Coordinated Subchlorophins and Their Peripheral Modifications. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612277] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kota Yoshida
- Department of Chemistry, Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
| | - Wonhee Cha
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry; Yonsei University; Seoul 120-749 Korea
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry; Yonsei University; Seoul 120-749 Korea
| | - Atsuhiro Osuka
- Department of Chemistry, Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
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11
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Guberman-Pfeffer MJ, Greco JA, Samankumara LP, Zeller M, Birge RR, Gascón JA, Brückner C. Bacteriochlorins with a Twist: Discovery of a Unique Mechanism to Red-Shift the Optical Spectra of Bacteriochlorins. J Am Chem Soc 2016; 139:548-560. [DOI: 10.1021/jacs.6b12419] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
| | - Jordan A. Greco
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Lalith P. Samankumara
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Matthias Zeller
- Department
of Chemistry, Youngstown State University, One University Plaza, Youngstown, Ohio 44555-3663, United States
| | - Robert R. Birge
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
- Department
of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut 06269-3125, United States
| | - José A. Gascón
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Christian Brückner
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
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12
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Yin J, Ye Q, Hao W, Du S, Gu Y, Zhang WX, Xi Z. Formation of Cyclopenta[c]pyridine Derivatives from 2,5-Disubstituted Pyrroles and 1,4-Dibromo-1,3-butadienes via Pyrrole-Ring One-Carbon Expansion. Org Lett 2016; 19:138-141. [DOI: 10.1021/acs.orglett.6b03431] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jianhao Yin
- Beijing
National Laboratory for Molecular Sciences (BNLMS), and Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Qingyu Ye
- Beijing
National Laboratory for Molecular Sciences (BNLMS), and Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Wei Hao
- Beijing
National Laboratory for Molecular Sciences (BNLMS), and Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Shuaijing Du
- Beijing
National Laboratory for Molecular Sciences (BNLMS), and Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Yucheng Gu
- Syngenta Jealott’s Hill International Research Centre, Bracknell, Berks RG42 6EY, U.K
| | - Wen-Xiong Zhang
- Beijing
National Laboratory for Molecular Sciences (BNLMS), and Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Zhenfeng Xi
- Beijing
National Laboratory for Molecular Sciences (BNLMS), and Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry (SIOC), Shanghai 200032, China
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13
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Sharma M, Banerjee S, Zeller M, Brückner C. Fusion and Desulfurization Reactions of Thiomorpholinochlorins. J Org Chem 2016; 81:12350-12356. [DOI: 10.1021/acs.joc.6b02383] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Meenakshi Sharma
- Department
of Chemistry, University of Connecticut, Unit 3060, Storrs, Connecticut 06269-3060, United States
| | - Subhadeep Banerjee
- Department
of Chemistry, University of Connecticut, Unit 3060, Storrs, Connecticut 06269-3060, United States
| | - Matthias Zeller
- Department
of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907-2084, United States
| | - Christian Brückner
- Department
of Chemistry, University of Connecticut, Unit 3060, Storrs, Connecticut 06269-3060, United States
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14
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Brückner C. The Breaking and Mending of meso-Tetraarylporphyrins: Transmuting the Pyrrolic Building Blocks. Acc Chem Res 2016; 49:1080-92. [PMID: 26967793 DOI: 10.1021/acs.accounts.6b00043] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Naturally occurring porphyrins and hydroporphyrins vary with respect to their ring substituents and oxidation states, but their tetrapyrrolic frameworks remain fully preserved across all kingdoms of life; there are no naturally occurring porphyrin-like macrocycles known that contain nonpyrrolic building blocks. However, the study of porphyrin analogues in which one or two pyrroles were replaced with nonpyrrolic building blocks might shed light on the correlation between structural modulation and ground and excited state optical properties of the "pigments of life", unlocking their mechanisms of function. Also, porphyrinoids with strong absorbance and emission spectra in the NIR are sought after in technical (e.g., light-harvesting) and biomedical (e.g., imaging and photochemotherapy) applications. These porphyrin analogues, the so-called pyrrole-modified porphyrins (PMPs), are synthetically accessible using total syntheses. Alternatively-and most handily-they can also be formed by conversion of synthetic porphyrins. Guided by older reports of the fortuitous modifications of porphyrins into PMPs, our research program generalized the so-dubbed "Breaking and Mending of Porphyrins" approach toward PMPs. This method to convert a pyrrole in meso-tetraarylporphyrins to a nonpyrrolic building block with high precision relies on a number of distinct steps. Step 1: The porphyrin is functionalized in a way that activates one or two peripheral double bonds toward breakage; in all cases surveyed here, this step is an osmium tetroxide-mediated dihydroxylation to generate dihydroxychlorin and tetrahydroxybacteriochlorins. Step 2: The activated, dihydroxylated β,β'-bond is "broken". Step 3: The functional groups resulting from the ring-cleavage reactions are utilized in subsequent "mending" steps to form the PMPs, that themselves may be subject to further modifications, Step 4. Thus, PMPs in which a pyrrole was degraded to an imine linkage, contracted to a four-membered ring, or expanded by oxygen, sulfur, carbon, or nitrogen atoms to form six-membered building blocks have become accessible. This approach also allowed the replacement of a single β-carbon atom by a nitrogen or oxygen atom. Depending on the ring size, conformation, conformational flexibility, the oxidation state of the pyrrole replacements, or the presence of substituents that π-extend the chromophores, the PMPs possess porphyrin- or hydroporphyrin-like optical spectra, or they show altogether unique electronic properties. Some PMP classes allow the fine-tuning of their absorption range; others exhibit panchromatic absorption spectra from the UV to the NIR. Several PMPs take up persistent chiral helimeric conformations that could be resolved. This Account summarizes the scopes of the "Breaking and Mending" methodology with a special focus on laying out the structural diversity of PMPs accessible from meso-tetraarylporphyrins and highlighting their optical properties, with the aim of encouraging their further study and application.
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Affiliation(s)
- Christian Brückner
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
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15
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Akhigbe J, Yang M, Luciano M, Brückner C. Quinoline-annulated chlorins and chlorin-analogs. J PORPHYR PHTHALOCYA 2016. [DOI: 10.1142/s1088424616500036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The OsO4-mediated dihydroxylation of quinoline-annulated porphyrin generates a quinoline-annulated dihydroxychlorin in a regioselective fashion. Its dihydroxypyrroline moiety, located at the opposite of the annulated pyrrole, is susceptible to the same functional group interconversions we previously demonstrated for non-annulated dihydroxychlorins: oxidations to the corresponding dione, lactone, and dialkoxymorpholine derivatives. The quinoline-annulated chlorin and derivatives are all characterized by absorption spectra that are much broadened and between 130 and 220 nm red-shifted compared to their non-annulated analogs. Absorbance maxima in the NIR up to well above 800 nm were recorded. We attribute the bathochromic shift to their extended [Formula: see text]-systems and inferred non-planarity, highlighting that quinoline-annulation is a particularly effective and simple strategy to red-shift the absorption spectra of chlorins and chlorin analogs.
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Affiliation(s)
- Joshua Akhigbe
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, USA
| | - Mengxi Yang
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, USA
| | - Michael Luciano
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, USA
| | - Christian Brückner
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, USA
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16
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Ke XS, Ning Y, Tang J, Hu JY, Yin HY, Wang GX, Yang ZS, Jie J, Liu K, Meng ZS, Zhang Z, Su H, Shu C, Zhang JL. Gadolinium(III) Porpholactones as Efficient and Robust Singlet Oxygen Photosensitizers. Chemistry 2016; 22:9676-86. [DOI: 10.1002/chem.201601517] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Indexed: 01/25/2023]
Affiliation(s)
- Xian-Sheng Ke
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P.R. China
| | - Yingying Ning
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P.R. China
| | - Juan Tang
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P.R. China
| | - Ji-Yun Hu
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P.R. China
| | - Hao-Yan Yin
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P.R. China
| | - Gao-Xiang Wang
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P.R. China
| | - Zi-Shu Yang
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P.R. China
| | - Jialong Jie
- Beijing National Laboratory for Molecular Sciences; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P.R. China
| | - Kunhui Liu
- College of Chemistry; Beijing Normal University; Beijing 100875 P.R. China
| | - Zhao-Sha Meng
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P.R. China
| | - Zongyao Zhang
- Department of Chemistry; Renmin University of China; Beijing 100872 P.R. China
| | - Hongmei Su
- Beijing National Laboratory for Molecular Sciences; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P.R. China
- College of Chemistry; Beijing Normal University; Beijing 100875 P.R. China
| | - Chunying Shu
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Molecular Nanostructure and Nanotechnology; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P.R. China
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17
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Hyland MA, Hewage N, Panther K, Nimthong-Roldán A, Zeller M, Samaraweera M, Gascon JA, Brückner C. Chromene-Annulated Bacteriochlorins. J Org Chem 2016; 81:3603-18. [DOI: 10.1021/acs.joc.6b00273] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael A. Hyland
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Nisansala Hewage
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Kimberly Panther
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Arunpatcha Nimthong-Roldán
- Department
of Chemistry, Youngstown State University, One University Plaza, Youngstown, Ohio 44555-3663, United States
| | - Matthias Zeller
- Department
of Chemistry, Youngstown State University, One University Plaza, Youngstown, Ohio 44555-3663, United States
| | - Milinda Samaraweera
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - José A. Gascon
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Christian Brückner
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
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18
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Costa LD, Costa JIT, Tomé AC. Porphyrin Macrocycle Modification: Pyrrole Ring-Contracted or -Expanded Porphyrinoids. Molecules 2016; 21:320. [PMID: 27005605 PMCID: PMC6274216 DOI: 10.3390/molecules21030320] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 02/24/2016] [Accepted: 03/01/2016] [Indexed: 01/01/2023] Open
Abstract
In recent years, several synthetic strategies aiming at the peripheral functionalization of porphyrins were developed. Particularly interesting are those involving the modification of β-pyrrolic positions leading to pyrrole-modified porphyrins containing four-, five-, six- or seven-membered heterocycles. Azeteoporphyrins, porpholactones and morpholinoporphyrins are representative examples of such porphyrinoids. These porphyrin derivatives have recently gained an increasing interest due to their potential application in PDT, as multimodal imaging contrast agents, NIR-absorbing dyes, optical sensors for oxygen, cyanide, hypochlorite and pH, and in catalysis.
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Affiliation(s)
- Letícia D Costa
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Joana I T Costa
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Augusto C Tomé
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
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19
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Mazzone G, Alberto ME, De Simone BC, Marino T, Russo N. Can Expanded Bacteriochlorins Act as Photosensitizers in Photodynamic Therapy? Good News from Density Functional Theory Computations. Molecules 2016; 21:288. [PMID: 26938516 PMCID: PMC6273748 DOI: 10.3390/molecules21030288] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 02/19/2016] [Accepted: 02/24/2016] [Indexed: 01/10/2023] Open
Abstract
The main photophysical properties of a series of expanded bacteriochlorins, recently synthetized, have been investigated by means of DFT and TD-DFT methods. Absorption spectra computed with different exchange-correlation functionals, B3LYP, M06 and ωB97XD, have been compared with the experimental ones. In good agreement, all the considered systems show a maximum absorption wavelength that falls in the therapeutic window (600-800 nm). The obtained singlet-triplet energy gaps are large enough to ensure the production of cytotoxic singlet molecular oxygen. The computed spin-orbit matrix elements suggest a good probability of intersystem spin-crossing between singlet and triplet excited states, since they result to be higher than those computed for 5,10,15,20-tetrakis-(m-hydroxyphenyl)chlorin (Foscan©) already used in the photodynamic therapy (PDT) protocol. Because of the investigated properties, these expanded bacteriochlorins can be proposed as PDT agents.
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Affiliation(s)
- Gloria Mazzone
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, I-87036 Arcavacata di Rende, Italy.
| | - Marta E Alberto
- Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris (IRCP), PSL Research University, F-75005 Paris, France.
| | - Bruna C De Simone
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, I-87036 Arcavacata di Rende, Italy.
| | - Tiziana Marino
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, I-87036 Arcavacata di Rende, Italy.
| | - Nino Russo
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, I-87036 Arcavacata di Rende, Italy.
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20
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Head ML, Zarate G, Brückner C. Pyrazinoporphyrins: Expanding a Pyrrolic Building Block in meso
-Tetraphenylporphyrin by a Nitrogen Atom. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501436] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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21
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Samankumara LP, Dorazio SJ, Akhigbe J, Li R, Nimthong-Roldán A, Zeller M, Brückner C. Indachlorins: Nonplanar Indanone-Annulated Chlorin Analogues with Panchromatic Absorption Spectra between 300 and 900 nm. Chemistry 2015; 21:11118-28. [DOI: 10.1002/chem.201501230] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 05/08/2015] [Indexed: 11/11/2022]
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22
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Meehan E, Li R, Zeller M, Brückner C. Octaethyl-1,3-oxazinochlorin: A β-Octaethylchlorin Analogue Made by Pyrrole Expansion. Org Lett 2015; 17:2210-3. [DOI: 10.1021/acs.orglett.5b00800] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Eileen Meehan
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Ruoshi Li
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Matthias Zeller
- Department
of Chemistry, Youngstown State University, One University Plaza, Youngstown, Ohio 44555-3663, United States
| | - Christian Brückner
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
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23
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Jiang J, Chen CY, Zhang N, Vairaprakash P, Lindsey JS. Polarity-tunable and wavelength-tunable bacteriochlorins bearing a single carboxylic acid or NHS ester. Use in a protein bioconjugation model system. NEW J CHEM 2015. [DOI: 10.1039/c4nj01340a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
10 new near-infrared absorbing bacteriochlorins (soluble in aqueous or membranous media) are equipped for protein bioconjugation.
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Affiliation(s)
- Jianbing Jiang
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
| | - Chih-Yuan Chen
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
| | - Nuonuo Zhang
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
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24
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Ke X, Tang J, Chen J, Zhou Z, Zhang J. β‐Ionic Conjugated Chlorin‐Type Photosensitizers Based on Porpholactone: Synthesis, Photophysical Properties, and Photodynamic Activity. Chempluschem 2014. [DOI: 10.1002/cplu.201402356] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Xian‐Sheng Ke
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare‐Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China), Fax: (+86) 1062767034 www.chem.pku.edu.cn/zhangjl/
| | - Juan Tang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare‐Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China), Fax: (+86) 1062767034 www.chem.pku.edu.cn/zhangjl/
| | - Juan‐Juan Chen
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare‐Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China), Fax: (+86) 1062767034 www.chem.pku.edu.cn/zhangjl/
| | - Zheng‐Yang Zhou
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare‐Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China), Fax: (+86) 1062767034 www.chem.pku.edu.cn/zhangjl/
| | - Jun‐Long Zhang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare‐Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China), Fax: (+86) 1062767034 www.chem.pku.edu.cn/zhangjl/
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25
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Akhigbe J, Luciano M, Zeller M, Brückner C. Mono- and Bisquinoline-Annulated Porphyrins from Porphyrin β,β'-Dione Oximes. J Org Chem 2014; 80:499-511. [PMID: 25470653 DOI: 10.1021/jo502511j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
An acid-induced reaction of meso-tetraphenyl-2-hydroxyimino-3-oxoporphyrin leads, with concomitant loss of water, to a formal electrophilic aromatic substitution of the ortho-position of the phenyl group adjacent to the oxime, forming a quinoline moiety. Owing in part to the presence of a π-extended chromophore, the resulting meso-triphenylmonoquinoline-annulated porphyrin (λmax = 750 nm) possesses a much altered optical spectrum from that of the starting oxime (λmax = 667 nm). An oxidative DDQ-induced ring-closure process is also possible, generating the corresponding meso-triphenylmonoquinoline-annulated porphyrin quinoline N-oxide, possessing a slightly shifted and sharpened UV-vis spectrum (λmax = 737 nm). The connectivity of the chromophores was conclusively shown by NMR spectroscopy. Both ketone functionalities in meso-tetraphenyl-2,3-dioxoporphyrin can be converted, via the oxime and using the acid- or oxidant-induced reaction pathways, either in one step or in a stepwise fashion, to bisquinoline-annulated porphyrin (λmax = 775 nm) and its N-oxide (λmax = 779 nm), respectively. This process is complementary to a previously established pathway toward bisquinoline-annulated porphyrins. Their zinc(II), nickel(II), and palladium(II) complexes are also described. Several examples of the quinoline-annulated porphyrins were crystallographically characterized, proving their connectivity and showing their conformations that are extremely distorted from planarity. The work presents a full account on the synthesis, structure, and spectroscopic properties of these classes of NIR-absorbing dyes.
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Affiliation(s)
- Joshua Akhigbe
- †Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Michael Luciano
- †Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Matthias Zeller
- ‡Department of Chemistry, Youngstown State University, One University Plaza, Youngstown, Ohio 44555-3663, United States
| | - Christian Brückner
- †Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
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26
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Jiang J, Reddy KR, Pavan MP, Lubian E, Harris MA, Jiao J, Niedzwiedzki DM, Kirmaier C, Parkes-Loach PS, Loach PA, Bocian DF, Holten D, Lindsey JS. Amphiphilic, hydrophilic, or hydrophobic synthetic bacteriochlorins in biohybrid light-harvesting architectures: consideration of molecular designs. PHOTOSYNTHESIS RESEARCH 2014; 122:187-202. [PMID: 24997120 DOI: 10.1007/s11120-014-0021-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 05/26/2014] [Indexed: 06/03/2023]
Abstract
Biohybrid light-harvesting architectures can be constructed that employ native-like bacterial photosynthetic antenna peptides as a scaffold to which synthetic chromophores are attached to augment overall spectral coverage. Synthetic bacteriochlorins are attractive to enhance capture of solar radiation in the photon-rich near-infrared spectral region. The effect of the polarity of the bacteriochlorin substituents on the antenna self-assembly process was explored by the preparation of a bacteriochlorin-peptide conjugate using a synthetic amphiphilic bacteriochlorin (B1) to complement prior studies using hydrophilic (B2, four carboxylic acids) or hydrophobic (B3) bacteriochlorins. The amphiphilic bioconjugatable bacteriochlorin B1 with a polar ammonium-terminated tail was synthesized by sequential Pd-mediated reactions of a 3,13-dibromo-5-methoxybacteriochlorin. Each bacteriochlorin bears a maleimido-terminated tether for attachment to a cysteine-containing analog of the Rhodobacter sphaeroides antenna β-peptide to give conjugates β-B1, β-B2, and β-B3. Given the hydrophobic nature of the β-peptide, the polarity of B1 and B2 facilitated purification of the respective conjugate compared to the hydrophobic B3. Bacteriochlorophyll a (BChl a) associates with each conjugate in aqueous micellar media to form a dyad containing two β-peptides, two covalently attached synthetic bacteriochlorins, and a datively bonded BChl-a pair, albeit to a limited extent for β-B2. The reversible assembly/disassembly of dyad (β-B2/BChl)2 was examined in aqueous detergent (octyl glucoside) solution by temperature variation (15-35 °C). The energy-transfer efficiency from the synthetic bacteriochlorin to the BChl-a dimer was found to be 0.85 for (β-B1/BChl)2, 0.40 for (β-B2/BChl)2, and 0.85 for (β-B3/BChl)2. Thus, in terms of handling, assembly and energy-transfer efficiency taken together, the amphiphilic design examined herein is more attractive than the prior hydrophilic or hydrophobic designs.
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Affiliation(s)
- Jianbing Jiang
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695-8204, USA
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27
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Zeller M, Banerjee S, Brückner C. Oxazolochlorins. 14. Acta Crystallogr C 2014; 70:707-11. [DOI: 10.1107/s2053229614013953] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 06/13/2014] [Indexed: 11/10/2022] Open
Abstract
The structure of 8-oxo-5,10,15,20-tetraphenyl-7-oxaporphyrinN24-oxide, C43H28N4O3, (4B), shows thatN-oxidation of the pyrrole opposite the oxazolidone group cants the pyrrole out of the mean plane of the chromophore. This also affects the oxazolidone group, which is also slightly canted out. This conformation is qualitatively similar to that of the parentmeso-tetraphenylporphyrinN-oxide, but dissimilar to that of the porpholactoneN-oxide isomer 8-oxo-5,10,15,20-tetraphenyl-7-oxaporphyrinN22-oxide, (4A), carrying theN-oxide at the oxazolidone group. While the degree of canting of theN-oxidized groups in both cases is comparable (and more pronounced than in the porphyrinN-oxide case), in (4A) the pyrrolic groups adjacent to theN-oxidized group are more affected than the opposing group. These differences in the conformational modes may contribute to rationalizing the distinctly different electronic properties of (4A) and (4B).
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28
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Chen CY, Bocian DF, Lindsey JS. Synthesis of 24 bacteriochlorin isotopologues, each containing a symmetrical pair of 13C or 15N atoms in the inner core of the macrocycle. J Org Chem 2014; 79:1001-16. [PMID: 24422909 DOI: 10.1021/jo402488n] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Synthetic bacteriochlorins containing site-specific isotopic substitution enable spectroscopic interrogation to delineate physicochemical features relevant to bacteriochlorophylls in photosynthesis but have been little explored. A de novo synthesis has been employed to prepare bacteriochlorins wherein each macrocycle contains a pair of (13)C or (15)N atoms yet lacks substituents other than a geminal dimethyl group in each pyrroline ring. Preparation of a dihydrodipyrrin–acetal with single-isotopic substitution gives rise to a bacteriochlorin that contains two isotopic substitutions symmetrically disposed by a 180° rotation about the normal to the plane of the macrocycle. Eight such isotopically substituted bacteriochlorins were prepared from commercially available reactants (bacteriochlorin sites): ((13)C)paraformaldehyde (1, 11); ((13)C)formamide (4, 14); triethyl ((13)C)orthoformate (5, 15); K(13)CN (6, 16); (13)CH3NO2 (9, 19); N,N-dimethyl((13)C)formamide (10, 20); ((15)N)pyrrole (21, 23); CH3(15)NO2 (22, 24). Some loss of (15)N upon TiCl3-mediated McMurry-type ring closure of a nitro((15)N)hexanone is attributed to a parallel sequence of three reactions (Nef, exchange with natural-abundance NH4OAc buffer, and Paal–Knorr ring closure) leading to the dihydrodipyrrin–acetal. Zinc and copper chelates of each bacteriochlorin also were prepared. Together, the 24 bacteriochlorin isotopologues should provide valuable benchmarks for understanding ground- and excited-state molecular physics of the macrocycles related to photosynthetic function of bacteriochlorophylls.
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29
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Jiang J, Vairaprakash P, Reddy KR, Sahin T, Pavan MP, Lubian E, Lindsey JS. Hydrophilic tetracarboxy bacteriochlorins for photonics applications. Org Biomol Chem 2014; 12:86-103. [DOI: 10.1039/c3ob41791c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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30
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Abuteen A, Zanganeh S, Akhigbe J, Samankumara LP, Aguirre A, Biswal N, Braune M, Vollertsen A, Röder B, Brückner C, Zhu Q. The evaluation of NIR-absorbing porphyrin derivatives as contrast agents in photoacoustic imaging. Phys Chem Chem Phys 2013; 15:18502-9. [PMID: 24071709 PMCID: PMC5056905 DOI: 10.1039/c3cp52193a] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Six free base tetrapyrrolic chromophores, three quinoline-annulated porphyrins and three morpholinobacteriochlorins, that absorb light in the near-IR range and possess, in comparison to regular porphyrins, unusually low fluorescence emission and (1)O2 quantum yields were tested with respect to their efficacy as novel molecular photo-acoustic imaging contrast agents in a tissue phantom, providing an up to ∼2.5-fold contrast enhancement over that of the benchmark contrast agent ICG. The testing protocol compares the photoacoustic signal output strength upon absorption of approximately the same light energy. Some relationships between photophysical parameters of the dyes and the resulting photoacoustic signal strength could be derived.
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Affiliation(s)
- Akram Abuteen
- Department of Electrical and Computer Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Saeid Zanganeh
- Department of Electrical and Computer Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Joshua Akhigbe
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | | | - Andres Aguirre
- Department of Electrical and Computer Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Nrusingh Biswal
- Department of Electrical and Computer Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Marcel Braune
- Humboldt-Universität zu Berlin, Institut für Physik, AG Photobiophysik, Newtonstrabe 15, 12489 Berlin, Germany
| | - Anke Vollertsen
- Humboldt-Universität zu Berlin, Institut für Physik, AG Photobiophysik, Newtonstrabe 15, 12489 Berlin, Germany
| | - Beate Röder
- Humboldt-Universität zu Berlin, Institut für Physik, AG Photobiophysik, Newtonstrabe 15, 12489 Berlin, Germany
| | - Christian Brückner
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | - Quing Zhu
- Department of Electrical and Computer Engineering, University of Connecticut, Storrs, CT 06269, USA
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31
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Yu Z, Ptaszek M. Near-IR emissive chlorin-bacteriochlorin energy-transfer dyads with a common donor and acceptors with tunable emission wavelength. J Org Chem 2013; 78:10678-91. [PMID: 24079536 DOI: 10.1021/jo4016858] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Design, synthesis, and optical properties of a series of novel chlorin-bacteriochlorin energy transfer dyads are described. Each dyad is composed of a common red-absorbing (645-646 nm) chlorin, as an energy donor, and a different near-IR emitting bacteriochlorin, as an energy acceptor. Each bacteriochlorin acceptor is equipped with a different set of auxochromes, so that each of them emits at a different wavelength. Dyads exhibit an efficient energy transfer (≥0.77) even for chlorin-bacteriochlorin pairs with large (up to 122 nm) separation between donor emission and acceptor absorption. Excitation of the chlorin donor results in relatively strong emission of the bacteriochlorin acceptor, with a quantum yield Φf range of 0.155-0.23 in toluene and 0.12-0.185 in DMF. The narrow, tunable emission band of bacteriochlorins enables the selection of a series of three dyads with well-resolved emissions at 732, 760, and 788 nm, and common excitation at 645 nm. Selected dyads have been also converted into bioconjugatable N-succinamide ester derivatives. The optical properties of the described dyads make them promising candidates for development of a family of near-IR fluorophores for simultaneous imaging of multiple targets, where the whole set of fluorophores can be excited with the common wavelength, and fluorescence from each can be independently detected.
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Affiliation(s)
- Zhanqian Yu
- Department of Chemistry and Biochemistry, University of Maryland, Baltimore County , 1000 Hilltop Circle, Baltimore, Maryland 21250, United States
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32
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Yang E, Ruzié C, Krayer M, Diers JR, Niedzwiedzki DM, Kirmaier C, Lindsey JS, Bocian DF, Holten D. Photophysical properties and electronic structure of bacteriochlorin-chalcones with extended near-infrared absorption. Photochem Photobiol 2013; 89:586-604. [PMID: 23360219 DOI: 10.1111/php.12053] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 01/21/2013] [Indexed: 02/06/2023]
Abstract
Synthetic bacteriochlorins enable systematic tailoring of substituents about the bacteriochlorin chromophore and thereby provide insights concerning the native bacteriochlorophylls of bacterial photosynthesis. Nine free-base bacteriochlorins (eight prepared previously and one prepared here) have been examined that bear diverse substituents at the 13- or 3,13-positions. The substituents include chalcone (3-phenylprop-2-en-1-onyl) derivatives with groups attached to the phenyl moiety, a "reverse chalcone" (3-phenyl-3-oxo-1-enyl), and extended chalcones (5-phenylpenta-2,4-dien-1-onyl, retinylidenonyl). The spectral and photophysical properties (τs, Φf, Φ(ic), Φ(isc), τT, k(f), k(ic), k(isc)) of the bacteriochlorins have been characterized. The bacteriochlorins absorb strongly in the 780-800 nm region and have fluorescence quantum yields (Φf) in the range 0.05-0.11 in toluene and dimethylsulfoxide. Light-induced electron promotions between orbitals with predominantly substituent or macrocycle character or both may give rise to some net macrocycle ↔ substituent charge-transfer character in the lowest and higher singlet excited states as indicated by density functional theory (DFT) and time-dependent DFT calculations. Such calculations indicated significant participation of molecular orbitals beyond those (HOMO - 1 to LUMO + 1) in the Gouterman four-orbital model. Taken together, the studies provide insight into the fundamental properties of bacteriochlorins and illustrate designs for tuning the spectral and photophysical features of these near-infrared-absorbing tetrapyrrole chromophores.
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Affiliation(s)
- Eunkyung Yang
- Department of Chemistry, Washington University, St. Louis, MO, USA
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33
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Ogikubo J, Meehan E, Engle JT, Ziegler CJ, Brückner C. Oxazolochlorins. 9. meso-Tetraphenyl-2-oxabacteriochlorins and meso-Tetraphenyl-2,12/13-dioxabacteriochlorins. J Org Chem 2013; 78:2840-52. [PMID: 23421329 DOI: 10.1021/jo400031r] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Junichi Ogikubo
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060,
United States
| | - Eileen Meehan
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060,
United States
| | - James T. Engle
- Department
of Chemistry, University of Akron, Akron,
Ohio 44325-3601, United
States
| | | | - Christian Brückner
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060,
United States
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34
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Reddy KR, Jiang J, Krayer M, Harris MA, Springer JW, Yang E, Jiao J, Niedzwiedzki DM, Pandithavidana D, Parkes-Loach PS, Kirmaier C, Loach PA, Bocian DF, Holten D, Lindsey JS. Palette of lipophilic bioconjugatable bacteriochlorins for construction of biohybrid light-harvesting architectures. Chem Sci 2013. [DOI: 10.1039/c3sc22317e] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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35
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Reddy KR, Lubian E, Pavan MP, Kim HJ, Yang E, Holten D, Lindsey JS. Synthetic bacteriochlorins with integral spiro-piperidine motifs. NEW J CHEM 2013. [DOI: 10.1039/c3nj41161c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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36
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Sharma SK, Krayer M, Sperandio FF, Huang L, Huang YY, Holten D, Lindsey JS, Hamblin MR. Synthesis and evaluation of cationic bacteriochlorin amphiphiles with effective in vitro photodynamic activity against cancer cells at low nanomolar concentration. J PORPHYR PHTHALOCYA 2013; 17:73-85. [PMID: 23956614 PMCID: PMC3742135 DOI: 10.1142/s108842461250126x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Bacteriochlorins are attractive candidates as photosensitizers for photodynamic therapy (PDT) due to their intense absorption in the near-infrared (NIR) region of the spectrum where light transmission through tissue is maximal. Many naturally occurring bacteriochlorins are inherently unstable due to adventitious atmospheric oxidation. A de novo synthesis affords bacteriochlorins that contain a geminal dimethyl group in each reduced pyrrole ring to increase stability against oxidation. Here, three new synthetic bacteriochlorins, each bearing a single side-chain containing one or two positive charges, were investigated for their in vitro PDT activity against HeLa human cancer cells. All bacteriochlorins were active at low nanomolar concentration when activated with NIR light; those bearing a single positive charge exhibited faster uptake and higher activity. The bacteriochlorins were localized in mitochondria, lysosomes and endoplasmic reticulum as shown by organelle specific fluorescent probes. Cell death was via apoptosis as shown by cell morphology and nuclear condensation. Taken together, the results show the importance of appropriate peripheral groups about a photosensitizer for effective PDT applications.
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Affiliation(s)
- Sulbha K. Sharma
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Michael Krayer
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA
| | - Felipe F. Sperandio
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston MA, USA
- Department of Oral Pathology, School of Dentistry, University of Sao Paulo, Sao Paulo, SP 05508-000, Brazil
- CAPES Foundation, Ministry of Education of Brazil, Brasília, DF 70040-020, Brazil
| | - Liyi Huang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston MA, USA
- Department of Infectious Diseases, First Affiliated College & Hospital, Guangxi Medical University, Nanning 530021, China
| | - Ying-Ying Huang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston MA, USA
- Aesthetic and Plastic Center of Guangxi Medical University, Nanning, China
| | - Dewey Holten
- Department of Chemistry, Washington University, St. Louis, MO 63130, USA
| | - Jonathan S. Lindsey
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA
| | - Michael R. Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston MA, USA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
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Akhigbe J, Haskoor J, Krause JA, Zeller M, Brückner C. Formation, structure, and reactivity of meso-tetraaryl-chlorolactones, -porpholactams, and -chlorolactams, porphyrin and chlorin analogues incorporating oxazolone or imidazolone moieties. Org Biomol Chem 2013; 11:3616-28. [PMID: 23535718 DOI: 10.1039/c3ob40138c] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Joshua Akhigbe
- Department of Chemistry, University of Connecticut, Storrs, CT 06269-3060, USA
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38
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Ogikubo J, Meehan E, Engle JT, Ziegler CJ, Brückner C. meso-Aryl-3-alkyl-2-oxachlorins. J Org Chem 2012; 77:6199-207. [PMID: 22731999 DOI: 10.1021/jo300964v] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The formal replacement of a pyrrole moiety of meso-tetraarylporphyrin 1 by an oxazole moiety is described. The key step is the conversion of porpholactones 4 (prepared by a known two-step oxidation procedure from 1) by addition of alkyl Grignard reagent to form meso-tetraaryl-3-alkyl-2-oxachlorins 9 (alkyloxazolochlorins; alkyl = Me, Et, iPr). Hemiacetal 9 can be converted to an acetal, reduced to an ether, or converted to bis-alkyloxazolochlorins 11. The optical properties (UV-visible and fluorescence spectroscopy) are described. The chlorin-like optical properties of the alkyloxazolochlorins are compared to regular chlorins, such as 2,3-dihydroxychlorins and nonalkylated oxazolochlorins made by reduction from porpholactone 4. The conformations of the mono- and bis-alkylated 2-oxachlorins, as determined by single crystal X-ray diffractometry, are essentially planar, thus proving that their optical properties are largely due to their intrinsic electronic properties and not affected by conformational effects. The mono- and bis-3-alkyl-2-oxachlorins are a class of readily prepared and oxidatively stable chlorins.
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Affiliation(s)
- Junichi Ogikubo
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, USA
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