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Computational Study on the Mechanism of the Photouncaging Reaction of Vemurafenib: Toward an Enhanced Photoprotection Approach for Photosensitive Drugs. Molecules 2021; 26:molecules26071846. [PMID: 33806033 PMCID: PMC8037874 DOI: 10.3390/molecules26071846] [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: 08/15/2020] [Revised: 09/21/2020] [Accepted: 10/01/2020] [Indexed: 11/17/2022] Open
Abstract
The photochemical behavior of the photosensitive first-line anticancer drug vemurafenib (VFB) is of great interest due to the impact of such behavior on its pharmacological activity. In this work, we computationally elucidated the mechanism of the photoinduced release of VFB from the 4,5-dimethoxy-2-nitrobenzene (DMNB) photoprotecting group by employing various density functional theory (DFT)/time-dependent DFT (TD-DFT) approaches. The computational investigations included a comparative assessment of the influence of the position of the photoprotecting group as a substituent on the thermodynamics and kinetics of the photouncaging reactions of two VFB-DMNB prodrugs, namely pyrrole (NP) and sulfonamide (NS). With the aid of the DFT calculations concerning the activation energy barrier (∆G‡), the obtained results suggest that the step of the photoinduced intramolecular proton transfer of the DMNB moiety is not detrimental concerning the overall reaction profile of the photouncaging reaction of both prodrugs. However, the obtained results suggested that the position of the substitution position of the DMNB photoprotecting group within the prodrug structure has a substantial impact on the photouncaging reaction. In particular, the DMNB-Ns-VFB prodrug exhibited a notable increase in ∆G‡ for the key step of ring opining within the DMNB moiety indicative of potentially hindered kinetics of the photouncaging process compared with DMNB-Np-VFB. Such an increase in ∆G‡ may be attributed to the electronic influence of the NP fragment of the prodrug. The results reported herein elaborate on the mechanism of the photoinduced release of an important anticancer drug from photoprotecting groups with the aim of enhancing our understanding of the photochemical behavior of such photosensitive pharmaceutical materials at the molecular level.
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Pham TTT, Jakkampudi S, Furukawa K, Cheng FY, Lin TC, Nakamura Y, Morioka N, Abe M. p-Nitroterphenyl units for near-infrared two-photon uncaging of calcium ions. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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3
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Liu YC, Reddy DM, Chen XA, Shieh YC, Lee CF. Blue LED-Promoted Oxathiacetalization of Aldehydes and Ketones. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- You-Chen Liu
- Department of Chemistry; National Chung Hsing University; 145 Xingda Rd., South Dist. 402 Taichung City Taiwan R.O.C
| | - Daggula Mallikarjuna Reddy
- Department of Chemistry; National Chung Hsing University; 145 Xingda Rd., South Dist. 402 Taichung City Taiwan R.O.C
| | - Xin-An Chen
- Department of Chemistry; National Chung Hsing University; 145 Xingda Rd., South Dist. 402 Taichung City Taiwan R.O.C
| | - Yi-Chen Shieh
- Department of Chemistry; National Chung Hsing University; 145 Xingda Rd., South Dist. 402 Taichung City Taiwan R.O.C
| | - Chin-Fa Lee
- Department of Chemistry; National Chung Hsing University; 145 Xingda Rd., South Dist. 402 Taichung City Taiwan R.O.C
- Research Center for Sustainable Energy and Nanotechnology (RCSEN); Taichung Taiwan R.O.C
- Innovation and Development Center of Sustainable Agriculture (IDCSA); Taichung Taiwan R.O.C
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Guo Y, Xu T, Ma J. Does the photoredox reaction affect the photorelease of anthraquinone protected benzaldehyde? A time-resolved spectroscopic study. Phys Chem Chem Phys 2020; 22:15900-15907. [DOI: 10.1039/d0cp02103b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Time-resolved spectroscopy studies coupled with the results from density functional theory (DFT) computations were utilized to unravel the photodeprotection reaction mechanism of Aqe-diol-PPG and the photoredox of photoproduct Aqe-diol.
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Affiliation(s)
- Yan Guo
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi’an
- P. R. China
| | - Tongyu Xu
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi’an
- P. R. China
| | - Jiani Ma
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi’an
- P. R. China
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Debiossac M, Schätti J, Kriegleder M, Geyer P, Shayeghi A, Mayor M, Arndt M, Köhler V. Tailored photocleavable peptides: fragmentation and neutralization pathways in high vacuum. Phys Chem Chem Phys 2018; 20:11412-11417. [PMID: 29645042 PMCID: PMC5932999 DOI: 10.1039/c8cp01058g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 03/23/2018] [Indexed: 01/31/2023]
Abstract
Photocleavable tags (PCTs) have the potential for excellent spatio-temporal control over the release of subunits of complex molecules. Here, we show that electrosprayed oligopeptides, functionalized by a tailored ortho-nitroarylether can undergo site-specific photo-activated cleavage under UV irradiation (266 nm) in high vacuum. The comparison of UV photodissociation (UVPD) and collision-induced dissociation (CID) points to the thermal nature of the cleavage mechanism, a picture corroborated by the temperature dependence of the process. Two competing photodissociation pathways can be identified. In one case a phenolate anion is separated from a neutral zwitterion. In the other case a neutral phenol derivative leaves a negatively charged peptide behind. To understand the factors favoring one channel over the other, we investigate the influence of the peptide length, the nature of the phenolic group and the position of the nitro-group (ortho vs. para). The observed gas phase cleavage of a para-nitro benzylic ether markedly differs from the established behavior in solution.
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Affiliation(s)
- M. Debiossac
- Faculty of Physics, University of Vienna , VCQ, Boltzmanngasse 5 , A-1090 Vienna , Austria .
| | - J. Schätti
- Department of Chemistry, University of Basel , Mattenstrasse 24a, BPR 1096 , CH-4058 Basel , Switzerland .
| | - M. Kriegleder
- Faculty of Physics, University of Vienna , VCQ, Boltzmanngasse 5 , A-1090 Vienna , Austria .
| | - P. Geyer
- Faculty of Physics, University of Vienna , VCQ, Boltzmanngasse 5 , A-1090 Vienna , Austria .
| | - A. Shayeghi
- Faculty of Physics, University of Vienna , VCQ, Boltzmanngasse 5 , A-1090 Vienna , Austria .
| | - M. Mayor
- Department of Chemistry, University of Basel , Mattenstrasse 24a, BPR 1096 , CH-4058 Basel , Switzerland .
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , D-76344 Eggenstein-Leopoldshafen , Germany
- Lehn Institute of Functional Materials (LIFM), Sun Yat-Sen University (SYSU) , Xingang Rd. W. , Guangzhou , China
| | - M. Arndt
- Faculty of Physics, University of Vienna , VCQ, Boltzmanngasse 5 , A-1090 Vienna , Austria .
| | - V. Köhler
- Department of Chemistry, University of Basel , Mattenstrasse 24a, BPR 1096 , CH-4058 Basel , Switzerland .
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Niu Q, Xing L, Li C. From organocatalysed desilylations to high-yielding benzylidenations of electron-deficient benzaldehydes. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x14955339414758] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A new type of organoprecatalyst (MeSCH2Cl/KI) for desilylation and benzylidenation reactions has been designed. Both reactions are user friendly and high yielding (71–>99%) and have fast reaction rates. The desilylation of iodo silyl ethers was achieved with no sequential etherification side reactions like those seen for reactions when using TBAF. In the application of the catalytic system to a 6-TBDMS ether of a glucoside, glucoside benzylidenations using electron-deficient benzaldehydes were achieved in 87% yield compared with the previously reported yields of 69–77%. Altogether, 14 benzylidenation reactions were realised using silyloxy alcohols and electron-deficient benzaldehydes instead of their activated acetal forms. In terms of reaction rates and yields, the order of the benzylidenations is p-fluorobenzaldehyde > benzaldehyde > p-anisaldehyde, and a possible mechanism is discussed. These experiments have preliminarily differentiated this cost-effective catalytic system from the classic Lewis acids.
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Affiliation(s)
- Qun Niu
- Department of Chemistry, School of Science, Tianjin University, 135 Yaguan Road, Jinnan District, Tianjin 300354, P.R. China
| | - Linlin Xing
- Department of Chemistry, School of Science, Tianjin University, 135 Yaguan Road, Jinnan District, Tianjin 300354, P.R. China
| | - Chunbao Li
- Department of Chemistry, School of Science, Tianjin University, 135 Yaguan Road, Jinnan District, Tianjin 300354, P.R. China
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Wang P. Developing photolabile protecting groups based on the excited state meta effect. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2016.11.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Ding X, Devalankar DA, Wang P. Structurally Simple Benzylidene-Type Photolabile Diol Protecting Groups. Org Lett 2016; 18:5396-5399. [DOI: 10.1021/acs.orglett.6b02777] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiong Ding
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Dattatray A. Devalankar
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Pengfei Wang
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
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Klán P, Šolomek T, Bochet CG, Blanc A, Givens R, Rubina M, Popik V, Kostikov A, Wirz J. Photoremovable protecting groups in chemistry and biology: reaction mechanisms and efficacy. Chem Rev 2013; 113:119-91. [PMID: 23256727 PMCID: PMC3557858 DOI: 10.1021/cr300177k] [Citation(s) in RCA: 1229] [Impact Index Per Article: 111.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Indexed: 02/06/2023]
Affiliation(s)
- Petr Klán
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
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Zhao H, Sterner ES, Coughlin EB, Theato P. o-Nitrobenzyl Alcohol Derivatives: Opportunities in Polymer and Materials Science. Macromolecules 2012. [DOI: 10.1021/ma201924h] [Citation(s) in RCA: 432] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hui Zhao
- Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse 45, D-20146 Hamburg, Germany
| | - Elizabeth S. Sterner
- Department of Polymer Science & Engineering, University of Massachusetts, 120 Governors Drive, Amherst, Massachusetts 01003-4530, United States
| | - E. Bryan Coughlin
- Department of Polymer Science & Engineering, University of Massachusetts, 120 Governors Drive, Amherst, Massachusetts 01003-4530, United States
| | - Patrick Theato
- Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse 45, D-20146 Hamburg, Germany
- World Class University (WCU) program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, College of Engineering, Seoul National University (SNU), Seoul, Korea
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Šolomek T, Mercier S, Bally T, Bochet CG. Photolysis of ortho-nitrobenzylic derivatives: the importance of the leaving group. Photochem Photobiol Sci 2012; 11:548-55. [DOI: 10.1039/c1pp05308f] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Thevenet D, Neier R. An Efficient Photoinduced Deprotection of Aromatic Acetals and Ketals. Helv Chim Acta 2011. [DOI: 10.1002/hlca.201000333] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Donten ML, Hamm P, VandeVondele J. A Consistent Picture of the Proton Release Mechanism of oNBA in Water by Ultrafast Spectroscopy and Ab Initio Molecular Dynamics. J Phys Chem B 2011; 115:1075-83. [DOI: 10.1021/jp109053r] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mateusz L. Donten
- University of Zurich, Institute of Physical Chemistry, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Peter Hamm
- University of Zurich, Institute of Physical Chemistry, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Joost VandeVondele
- University of Zurich, Institute of Physical Chemistry, Winterthurerstrasse 190, 8057 Zurich, Switzerland
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15
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Kammari L, Šolomek T, Ngoy BP, Heger D, Klán P. Orthogonal Photocleavage of a Monochromophoric Linker. J Am Chem Soc 2010; 132:11431-3. [DOI: 10.1021/ja1047736] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Laxminarayana Kammari
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5/A8, 625 00 Brno, Czech Republic
| | - Tomáš Šolomek
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5/A8, 625 00 Brno, Czech Republic
| | - Bokolombe Pitchou Ngoy
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5/A8, 625 00 Brno, Czech Republic
| | - Dominik Heger
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5/A8, 625 00 Brno, Czech Republic
| | - Petr Klán
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5/A8, 625 00 Brno, Czech Republic
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Unprecedented copper(I)-catalyzed photochemical reaction of diethyl ether with vicinal diols and ketals. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.06.080] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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