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Özçelik Ş, Yurttaş AG, Kahveci MU, Sevim AM, Gül A. Aza-BODIPY photosensitizer substituted with phthalonitrile groups: Synthesis, photophysical properties and in vitro tests for breast cancer. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Lebedev Y, Apte C, Cheng S, Lavigne C, Lough A, Aspuru-Guzik A, Seferos DS, Yudin AK. Boramidine: A Versatile Structural Motif for the Design of Fluorescent Heterocycles. J Am Chem Soc 2020; 142:13544-13549. [PMID: 32602711 DOI: 10.1021/jacs.0c05410] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Sodium cyanoborohydride-derived N-alkylnitriliumboranes were found to be versatile precursors for the synthesis of novel boron-containing heterocycles. The reaction between N-alkylnitriliumboranes and 2-aminopyridines, imidazoles, oxazoles, or isoxazoles leads to the incorporation of the [B-C] motif into a five-membered boramidine, which exists as a mixture of Z and E isomers. The resulting heterocycles are blue fluorescent in both the solid state and in solution with ca. 2700-8400 cm-1 Stokes shifts and quantum yields in the 65-74% range in water and in the 42-84% range in organic solvents. The combination of photophysical properties, structural tunability, stability, and solubility in various media is expected to find application in a range of disciplines.
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Affiliation(s)
- Yury Lebedev
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George, Toronto, ON M5S3H6, Canada
| | - Chirag Apte
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George, Toronto, ON M5S3H6, Canada
| | - Susan Cheng
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George, Toronto, ON M5S3H6, Canada
| | - Cyrille Lavigne
- Department of Computer Science, University of Toronto, 214 College Street, Toronto, ON M5T3A1, Canada
| | - Alan Lough
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George, Toronto, ON M5S3H6, Canada
| | - Alán Aspuru-Guzik
- Department of Computer Science, University of Toronto, 214 College Street, Toronto, ON M5T3A1, Canada.,Chemical Physics Theory Group, Department of Chemistry, University of Toronto, 80 St. George, Toronto, ON M5S3H6, Canada.,Vector Institute for Artificial Intelligence, 661 University Avenue, Suite 710, Toronto, ON M5G1M1, Canada.,Lebovic Fellow, Canadian Institute for Advanced Research (CIFAR), 661 University Avenue, Toronto, ON M5G1M1, Canada
| | - Dwight S Seferos
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George, Toronto, ON M5S3H6, Canada.,Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S3E5, Canada
| | - Andrei K Yudin
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George, Toronto, ON M5S3H6, Canada
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Diaz-Rodriguez RM, Burke L, Robertson KN, Thompson A. Synthesis, properties and reactivity of BCl 2 aza-BODIPY complexes and salts of the aza-dipyrrinato scaffold. Org Biomol Chem 2020; 18:2139-2147. [PMID: 32134102 DOI: 10.1039/d0ob00272k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The synthesis and characterisation of the BCl2-chelated complexes of both archetypal aza-dipyrrin sub-types are presented. A stepwise halogen exchange, leading to a mixed-halide Cl-B-F intermediate, is implicated in the conversion of F-aza-BODIPYs to Cl-aza-BODIPYs upon treatment with BCl3. The utility of the Cl-aza-BODIPY scaffold to facilitate substitutions at boron is demonstrated under mild conditions through treatment with aryl Grignard reagents. Additionally, the lability of the B-Cl bond enables facile removal of the BCl2 group, i.e. deprotection of F-aza-BODIPYs, under aqueous conditions. Three aza-dipyrrin HX salts were also synthesised and characterised. The pKa of the protonated aza-dipyrrin was determined to be 4, thereby providing insight regarding the storage and stability of such species.
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Zhang Y, Feng L, Wang J, Tao D, Liang C, Cheng L, Hao E, Liu Z. Surfactant-Stripped Micelles of Near Infrared Dye and Paclitaxel for Photoacoustic Imaging Guided Photothermal-Chemotherapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1802991. [PMID: 30286285 DOI: 10.1002/smll.201802991] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 09/01/2018] [Indexed: 05/20/2023]
Abstract
Development of nanoagents with strong near-infrared (NIR) absorbance and high photothermal conversion capacity is highly desired for efficient photoacoustic (PA) imaging and photothermal therapy of cancers. Herein, surfactant-stripped micelles with photostable near-infrared dye, β-thiophene-fused BF2 -azadipyrromethene (aza-BDTP), are prepared in the presence of paclitaxel (PTX) with Pluronic F127 as the surfactant. Distinct from hydrophobic aza-BDTP and PTX, the obtained surfactant-stripped micelles aza-BDTP/PTX show excellent solubility, physiological stability, and high loading efficiencies for corresponding aza-BDTP and PTX. Intriguingly, these aza-BDTP/PTX micelles exhibit high photothermal conversion efficiency at 33.9%, significantly higher than 16.9% for bare aza-BDTP molecules, owing to aggregation-induced quenching of aza-BDTP fluorescence. With excellent photostability, aza-BDTP/PTX micelles appear to be a highly stable photoacoustic imaging probe and show efficient tumor accumulation as visualized under photoacoustic imaging upon intravenous injection. After being irradiated with a 785 nm laser, 4T1 tumors on the mice with systemic administration of aza-BDTP/PTX micelles are fully eradiated without any recurrences within 60 d. This work presents a general method for efficient encapsulation of hydrophobic aza-BDTP and PTX, obtaining hybrid aza-BDTP/PTX micelles as promising nanotheranostics for imaging guided cancer combination therapy.
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Affiliation(s)
- Yicheng Zhang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), College of Nano Science & Technology (CNST), Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China
| | - Liangzhu Feng
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), College of Nano Science & Technology (CNST), Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China
| | - Jun Wang
- Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, Anhui, China
| | - Danlei Tao
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), College of Nano Science & Technology (CNST), Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China
| | - Chao Liang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), College of Nano Science & Technology (CNST), Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China
| | - Liang Cheng
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), College of Nano Science & Technology (CNST), Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China
| | - Erhong Hao
- Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, Anhui, China
| | - Zhuang Liu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), College of Nano Science & Technology (CNST), Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China
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