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Weinstain R, Slanina T, Kand D, Klán P. Visible-to-NIR-Light Activated Release: From Small Molecules to Nanomaterials. Chem Rev 2020; 120:13135-13272. [PMID: 33125209 PMCID: PMC7833475 DOI: 10.1021/acs.chemrev.0c00663] [Citation(s) in RCA: 261] [Impact Index Per Article: 65.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Indexed: 02/08/2023]
Abstract
Photoactivatable (alternatively, photoremovable, photoreleasable, or photocleavable) protecting groups (PPGs), also known as caged or photocaged compounds, are used to enable non-invasive spatiotemporal photochemical control over the release of species of interest. Recent years have seen the development of PPGs activatable by biologically and chemically benign visible and near-infrared (NIR) light. These long-wavelength-absorbing moieties expand the applicability of this powerful method and its accessibility to non-specialist users. This review comprehensively covers organic and transition metal-containing photoactivatable compounds (complexes) that absorb in the visible- and NIR-range to release various leaving groups and gasotransmitters (carbon monoxide, nitric oxide, and hydrogen sulfide). The text also covers visible- and NIR-light-induced photosensitized release using molecular sensitizers, quantum dots, and upconversion and second-harmonic nanoparticles, as well as release via photodynamic (photooxygenation by singlet oxygen) and photothermal effects. Release from photoactivatable polymers, micelles, vesicles, and photoswitches, along with the related emerging field of photopharmacology, is discussed at the end of the review.
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Affiliation(s)
- Roy Weinstain
- School
of Plant Sciences and Food Security, Faculty of Life Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Tomáš Slanina
- Institute
of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague, Czech Republic
| | - Dnyaneshwar Kand
- School
of Plant Sciences and Food Security, Faculty of Life Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Petr Klán
- Department
of Chemistry and RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
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Josa‐Culleré L, Llebaria A. In the Search for Photocages Cleavable with Visible Light: An Overview of Recent Advances and Chemical Strategies. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000253] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Laia Josa‐Culleré
- Laboratory of Medicinal Chemistry Institute for Advanced Chemistry of Catalonia (IQAC-CSIC) Jordi Girona 18–26 08034 Barcelona Spain
| | - Amadeu Llebaria
- Laboratory of Medicinal Chemistry Institute for Advanced Chemistry of Catalonia (IQAC-CSIC) Jordi Girona 18–26 08034 Barcelona Spain
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Gritzapis PS, Varras PC, Andreou NP, Katsani KR, Dafnopoulos K, Psomas G, Peitsinis ZV, Koumbis AE, Fylaktakidou KC. p-Pyridinyl oxime carbamates: synthesis, DNA binding, DNA photocleaving activity and theoretical photodegradation studies. Beilstein J Org Chem 2020; 16:337-350. [PMID: 32256851 PMCID: PMC7082612 DOI: 10.3762/bjoc.16.33] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 02/19/2020] [Indexed: 12/23/2022] Open
Abstract
A number of p-pyridinyl oxime carbamate derivatives were prepared upon the reaction of the corresponding oximes with isocyanates. These novel compounds reacted photochemically in the presence of supercoiled plasmid DNA. Structure-activity relationship (SAR) studies revealed that the substituent on the imine group was not affecting the extend of the DNA damage, whereas the substituent of the carbamate group was critical, with the halogenated derivatives to be able to cause extensive single and double stranded DNA cleavages, acting as "synthetic nucleases", independently of oxygen and pH. Calf thymus-DNA affinity studies showed a good-to-excellent affinity of selected both active and non-active derivatives. Preliminary theoretical studies were performed, in an effort to explain the reasons why some derivatives cause photocleavage and some others not, which were experimentally verified using triplet state activators and quenchers. These theoretical studies seem to allow the prediction of the activity of derivatives able to pass intersystem crossing to their triplet energy state and thus create radicals able to damage DNA. With this study, it is shown that oxime carbamate derivatives have the potential to act as novel effective photobase generating DNA-photocleavers, and are proposed as new leads for "on demand" biotechnological applications in drug discovery and medicine.
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Affiliation(s)
- Panagiotis S Gritzapis
- Laboratory of Organic, Bioorganic and Natural Product Chemistry, Molecular Biology and Genetics Department, Democritus University of Thrace, University Campus, Dragana, 68100, Alexandroupolis, Greece
| | - Panayiotis C Varras
- Laboratory of Organic, Bioorganic and Natural Product Chemistry, Molecular Biology and Genetics Department, Democritus University of Thrace, University Campus, Dragana, 68100, Alexandroupolis, Greece
| | - Nikolaos-Panagiotis Andreou
- Laboratory of Organic, Bioorganic and Natural Product Chemistry, Molecular Biology and Genetics Department, Democritus University of Thrace, University Campus, Dragana, 68100, Alexandroupolis, Greece
| | - Katerina R Katsani
- Laboratory of Biochemistry and Molecular Virology, Molecular Biology and Genetics Department, Democritus University of Thrace, University Campus, Dragana, 68100, Alexandroupolis, Greece
| | - Konstantinos Dafnopoulos
- Laboratory of Organic, Bioorganic and Natural Product Chemistry, Molecular Biology and Genetics Department, Democritus University of Thrace, University Campus, Dragana, 68100, Alexandroupolis, Greece
- Laboratory of Inorganic Chemistry, Chemistry Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - George Psomas
- Laboratory of Inorganic Chemistry, Chemistry Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Zisis V Peitsinis
- Laboratory of Organic Chemistry, Chemistry Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Alexandros E Koumbis
- Laboratory of Organic Chemistry, Chemistry Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Konstantina C Fylaktakidou
- Laboratory of Organic, Bioorganic and Natural Product Chemistry, Molecular Biology and Genetics Department, Democritus University of Thrace, University Campus, Dragana, 68100, Alexandroupolis, Greece
- Laboratory of Organic Chemistry, Chemistry Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
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Sambath K, Zhao T, Wan Z, Zhang Y. Photo-uncaging of BODIPY oxime ester for histone deacetylases induced apoptosis in tumor cells. Chem Commun (Camb) 2019; 55:14162-14165. [DOI: 10.1039/c9cc07199g] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new photo-uncaging platform to guide drug delivery with enhanced therapeutic effect.
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Affiliation(s)
- Karthik Sambath
- Department of Chemistry and Environmental Science
- College of Science and Liberal Arts
- New Jersey Institute of Technology
- Newark
- USA
| | - Tinghan Zhao
- Department of Chemistry and Environmental Science
- College of Science and Liberal Arts
- New Jersey Institute of Technology
- Newark
- USA
| | - Zhaoxiong Wan
- Department of Chemistry and Environmental Science
- College of Science and Liberal Arts
- New Jersey Institute of Technology
- Newark
- USA
| | - Yuanwei Zhang
- Department of Chemistry and Environmental Science
- College of Science and Liberal Arts
- New Jersey Institute of Technology
- Newark
- USA
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Pyridine and p-Nitrophenyl Oxime Esters with Possible Photochemotherapeutic Activity: Synthesis, DNA Photocleavage and DNA Binding Studies. Molecules 2016; 21:molecules21070864. [PMID: 27376258 PMCID: PMC6272938 DOI: 10.3390/molecules21070864] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 06/22/2016] [Accepted: 06/28/2016] [Indexed: 12/20/2022] Open
Abstract
Compared to standard treatments for various diseases, photochemotherapy and photo-dynamic therapy are less invasive approaches, in which DNA photocleavers represent promising tools for novel “on demand” chemotherapeutics. A series of p-nitrobenzoyl and p-pyridoyl ester conjugated aldoximes, amidoximes and ethanone oximes were subjected to UV irradiation at 312 nm with supercoiled circular plasmid DNA. The compounds which possessed appropriate properties were additionally subjected to UVA irradiation at 365 nm. The ability of most of the compounds to photocleave DNA was high at 312 nm, whereas higher concentrations were required at 365 nm as a result of their lower UV absorption. The affinity of selected compounds to calf-thymus (CT) DNA was studied by UV spectroscopy, viscosity experiments and competitive studies with ethidium bromide (EB) revealing that all compounds interacted with CT DNA. The fluorescence emission spectra of the pre-treated EB-DNA exhibited a moderate to significant quenching in the presence of the compounds indicating the binding of the compounds to CT DNA via intercalation as concluded also by DNA-viscosity experiments. For the oxime esters the DNA photocleavage and affinity studies aimed to clarify the role of the oxime nature (aldoxime, ketoxime, amidoxime) and the role of the pyridine and p-nitrophenyl moieties both as oxime substituents and ester conjugates.
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Andreou NP, Dafnopoulos K, Tortopidis C, Koumbis AE, Koffa M, Psomas G, Fylaktakidou KC. Alkyl and aryl sulfonyl p-pyridine ethanone oximes are efficient DNA photo-cleavage agents. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 158:30-8. [DOI: 10.1016/j.jphotobiol.2016.02.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 02/17/2016] [Accepted: 02/18/2016] [Indexed: 01/30/2023]
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Papastergiou A, Perontsis S, Gritzapis P, Koumbis AE, Koffa M, Psomas G, Fylaktakidou KC. Evaluation of O-alkyl and aryl sulfonyl aromatic and heteroaromatic amidoximes as novel potent DNA photo-cleavers. Photochem Photobiol Sci 2016; 15:351-60. [DOI: 10.1039/c5pp00439j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
O-Alkyl and aryl p-pyridine sulfonyl amidoxime derivatives are effective novel DNA photo-cleavers, generating highly efficient sulfonyloxyl radicals, able to cause a high ratio of single to double strand nicks.
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Affiliation(s)
- A. Papastergiou
- Laboratory of Organic
- Bioorganic and Natural Product Chemistry
- Molecular Biology and Genetics Department
- Democritus University of Thrace
- Alexandroupolis
| | - S. Perontsis
- Laboratory of Inorganic Chemistry
- Chemistry Department
- Aristotle University of Thessaloniki
- Thessaloniki
- Greece
| | - P. Gritzapis
- Laboratory of Organic
- Bioorganic and Natural Product Chemistry
- Molecular Biology and Genetics Department
- Democritus University of Thrace
- Alexandroupolis
| | - A. E. Koumbis
- Laboratory of Organic Chemistry
- Chemistry Department
- Aristotle University of Thessaloniki
- Thessaloniki
- Greece
| | - M. Koffa
- Laboratory of Cellular Biology and Cell Cycle
- Molecular Biology and Genetics Department
- Democritus University of Thrace
- Alexandroupolis
- Greece
| | - G. Psomas
- Laboratory of Inorganic Chemistry
- Chemistry Department
- Aristotle University of Thessaloniki
- Thessaloniki
- Greece
| | - K. C. Fylaktakidou
- Laboratory of Organic
- Bioorganic and Natural Product Chemistry
- Molecular Biology and Genetics Department
- Democritus University of Thrace
- Alexandroupolis
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Karamtzioti P, Papastergiou A, Stefanakis JG, Koumbis AE, Anastasiou I, Koffa M, Fylaktakidou KC. O-Benzoyl pyridine aldoxime and amidoxime derivatives: novel efficient DNA photo-cleavage agents. MEDCHEMCOMM 2015. [DOI: 10.1039/c4md00548a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pyridine oxime esters are effective DNA photocleavers, causing single-/double-stranded DNA cleavage at concentrations as low as 1 μM.
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Affiliation(s)
- Paraskevi Karamtzioti
- Laboratory of Organic
- Bioorganic and Natural Product Chemistry
- Molecular Biology and Genetics Department
- Democritus University of Thrace
- University Campus
| | - Asterios Papastergiou
- Laboratory of Organic
- Bioorganic and Natural Product Chemistry
- Molecular Biology and Genetics Department
- Democritus University of Thrace
- University Campus
| | - John G. Stefanakis
- Laboratory of Organic Chemistry
- Chemistry Department
- Aristotle University of Thessaloniki
- Thessaloniki
- Greece
| | - Alexandros E. Koumbis
- Laboratory of Organic Chemistry
- Chemistry Department
- Aristotle University of Thessaloniki
- Thessaloniki
- Greece
| | - Ioanna Anastasiou
- Laboratory of Organic
- Bioorganic and Natural Product Chemistry
- Molecular Biology and Genetics Department
- Democritus University of Thrace
- University Campus
| | - Maria Koffa
- Laboratory of Organic
- Bioorganic and Natural Product Chemistry
- Molecular Biology and Genetics Department
- Democritus University of Thrace
- University Campus
| | - Konstantina C. Fylaktakidou
- Laboratory of Organic
- Bioorganic and Natural Product Chemistry
- Molecular Biology and Genetics Department
- Democritus University of Thrace
- University Campus
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Kathiravan V, Krishnan KG, Mohandas T, Thanikachalam V, Sakthivel P. (E)-3-Methyl-2,6-di-phenyl-piperidin-4-one O-(3-methyl-benzo-yl)oxime. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o883. [PMID: 25249925 PMCID: PMC4158521 DOI: 10.1107/s1600536814016638] [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: 06/05/2014] [Accepted: 07/17/2014] [Indexed: 11/10/2022]
Abstract
In the title compound, C26H26N2O2, the piperidine ring exhibits a chair conformation. The phenyl rings are attached to the central heterocycle in an equatorial position. The dihedral angle between the planes of the phenyl rings is 57.58 (8)°. In the crystal, C—H⋯O interactions connect the molecules into zigzag chains along [001].
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Affiliation(s)
- V Kathiravan
- Department of Physics, Goverment Arts College, Karur 639 005, India
| | - K Gokula Krishnan
- Department of Chemistry, Annamalai University, Annamalainagar, Chidambaram, India
| | - T Mohandas
- Department of Physics, Shri Angalamman College of Engineering and Technology, Siruganoor, Tiruchirappalli, India
| | - V Thanikachalam
- Department of Chemistry, Annamalai University, Annamalainagar, Chidambaram, India
| | - P Sakthivel
- Department of Physics, Urumu Dhanalakshmi College, Tiruchirappalli 620 019, India
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Raposo M, Coelho M, Gomes PJ, Vieira P, Ribeiro PA, Mason NJ, Hunniford CA, McCullough RW. DNA damage induced by carbon ions (C³⁺) beam accessed by independent component analysis of infrared spectra. Int J Radiat Biol 2014; 90:344-50. [PMID: 24517474 DOI: 10.3109/09553002.2014.892650] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE To understand the degradation processes and role of secondary species on deoxyribonucleic acid (DNA)-damaged fragments as a result of irradiation with energetic ions. MATERIALS AND METHODS Damage caused to DNA thin films as a result of exposure to 4 keV carbon ions beam was accessed by analyzing the infrared spectra, obtained in situ for different irradiation times, with both bi-dimensional (2D) correlation spectroscopy and independent component analysis (ICA). RESULTS Results indicated that deoxyribose, phosphate and base groups of the DNA molecule were being damaged and new reaction products as oxime and furfural groups are being formed. CONCLUSIONS Damage on DNA bases is consistent with the formation of oxime products which react with DNA deoxyribose products forming furfural groups and confirming that DNA damage is caused by direct and indirect processes.
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Affiliation(s)
- Maria Raposo
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa , Caparica , Portugal
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12
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Hwu JR, Tsay SC, Hong SC, Hsu MH, Liu CF, Chou SSP. Relationship Between Structure of Conjugated Oxime Esters and Their Ability to Cleave DNA. Bioconjug Chem 2013; 24:1778-83. [DOI: 10.1021/bc400060h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Jih Ru Hwu
- Department
of Chemistry, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
- Department
of Chemistry, National Central University, Jhongli 32001, Taiwan
| | - Shwu-Chen Tsay
- Department
of Chemistry, National Central University, Jhongli 32001, Taiwan
- Department
of Chemistry, Fu Jen Catholic University, Taipei 24205, Taiwan
| | - Shih Chin Hong
- Department
of Chemistry, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Ming-Hua Hsu
- Department
of Chemistry, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Chih-Fen Liu
- Department
of Chemistry, Fu Jen Catholic University, Taipei 24205, Taiwan
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Oxime esters of 2,6-diazaanthracene-9,10-dione and 4,5-diazafluoren-9-one as photo-induced DNA-cleaving agents. Molecules 2012; 17:3370-82. [PMID: 22421791 PMCID: PMC6268963 DOI: 10.3390/molecules17033370] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Revised: 03/10/2012] [Accepted: 03/12/2012] [Indexed: 12/16/2022] Open
Abstract
Two series of oxime esters containing the 2,6-diazaanthracene-9,10-dione bis-(O-benzoyloxime) and 4,5-diazafluoren-9-one O-9-benzoyloxime moieties have been synthesized and tested as photo-induced DNA cleaving agents. All these compounds were found to cleave DNA upon irradiation with 312 nm UV light. The structure-activity relationship of these molecules for DNA cleavage was established. A plausible reaction mechanism is also proposed.
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Chowdhury N, Dutta S, Dasgupta S, Singh NDP, Baidya M, Ghosh SK. Synthesis, photophysical, photochemical, DNA cleavage/binding and cytotoxic properties of pyrene oxime ester conjugates. Photochem Photobiol Sci 2012; 11:1239-50. [DOI: 10.1039/c2pp25033k] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wang MQ, Zhang J, Zhang Y, Zhang DW, Liu Q, Liu JL, Lin HH, Yu XQ. Metal-free cleavage efficiency toward DNA by a novel PNA analog-bridged macrocyclic polyamine. Bioorg Med Chem Lett 2011; 21:5866-9. [PMID: 21855339 DOI: 10.1016/j.bmcl.2011.07.097] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Revised: 07/18/2011] [Accepted: 07/26/2011] [Indexed: 10/17/2022]
Abstract
In this report we describe the synthesis of a new class of cyclen-contained compounds with novel peptide nucleic acid (PNA) analog motif. Target bis-cyclen derivative B was prepared and characterized by ESI-MS, NMR and HPLC. Interactions between compound B and calf thymus DNA were studied by thermal denaturation. Results indicate that the DNA binding affinity of B is stronger than that of mono-cyclen compound A, and the binding ability is little affected by the change of ionic strength. Agarose and denaturing polyacrylamide gel electrophoresis were used to assess the DNA cleavage activities. The macrocyclic polyamine-PNA analog conjugate B as a nuclease model can effectively cleave DNA via an oxidative pathway at micromolar concentration (10 μM) without the use of any additional metal ions. Meanwhile, the mono-cyclen compound A shows nearly no DNA cleavage effect under the same conditions.
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Affiliation(s)
- Ming-Qi Wang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, PR China
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Synthesis, singlet oxygen photogeneration and DNA photocleavage of porphyrins with nitrogen heterocycle tails. Molecules 2011; 16:3488-98. [PMID: 21522082 PMCID: PMC6263290 DOI: 10.3390/molecules16053488] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 04/13/2011] [Accepted: 04/18/2011] [Indexed: 11/17/2022] Open
Abstract
Eight novel compounds were prepared by reaction of 5-(bromo- propoxyphenyl)-10,15,20-triphenylporphyrin with oxazole thiols, 1,3,4-oxadiazole thiols and 1,3,4-thiadiazole thiols, and their structures confirmed by UV-vis, IR, 1H-NMR, MS and elemental analysis. The assessment of indirectly measured 1O2 production rates against 5,10,15,20-tetraphenyl porphyrin (H2TPP) were described and the relative singlet oxygen production yields were: porphyrin 5 > porphyrins 1, 3, 4, 6-8, H2TPP > porphyrin 2. Porphyrin 4 and porphyrin 7 showed substantial photocleavage activities toward DNA, with over 75% cleavage observed at 40 µM. It suggested that these those porphyrins with nitrogen heterocycle tails are potential photosensitive agents.
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Chowdhury N, Dutta S, Nishitha B, Dasgupta S, Singh NP. N,O-Diacyl-4-benzoyl-N-phenylhydroxylamines as photoinduced DNA cleaving agents. Bioorg Med Chem Lett 2010; 20:5414-7. [DOI: 10.1016/j.bmcl.2010.07.116] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Revised: 07/21/2010] [Accepted: 07/26/2010] [Indexed: 10/19/2022]
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18
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Fernandes L, Fischer FL, Ribeiro CW, Silveira GP, Sá MM, Nome F, Terenzi H. Metal-free artificial nucleases based on simple oxime and hydroxylamine scaffolds. Bioorg Med Chem Lett 2008; 18:4499-502. [DOI: 10.1016/j.bmcl.2008.07.052] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2008] [Revised: 07/11/2008] [Accepted: 07/14/2008] [Indexed: 10/21/2022]
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