1
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Nuttall R, Pham TT, Chadwick AC, Hungnes IN, Firth G, Heckenast MA, Sparkes HA, Galan MC, Ma MT, Pringle PG. Diphosphine Bioconjugates via Pt(0)-Catalyzed Hydrophosphination. A Versatile Chelator Platform for Technetium-99m and Rhenium-188 Radiolabeling of Biomolecules. Inorg Chem 2023; 62:20582-20592. [PMID: 36719138 PMCID: PMC10731653 DOI: 10.1021/acs.inorgchem.2c04008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Indexed: 02/01/2023]
Abstract
The ability to append targeting biomolecules to chelators that efficiently coordinate to the diagnostic imaging radionuclide, 99mTc, and the therapeutic radionuclide, 188Re, can potentially enable receptor-targeted "theranostic" treatment of disease. Here we show that Pt(0)-catalyzed hydrophosphination reactions are well-suited to the derivatization of diphosphines with biomolecular moieties enabling the efficient synthesis of ligands of the type Ph2PCH2CH2P(CH2CH2-Glc)2 (L, where Glc = a glucose moiety) using the readily accessible Ph2PCH2CH2PH2 and acryl derivatives. It is shown that hydrophosphination of an acrylate derivative of a deprotected glucose can be carried out in aqueous media. Furthermore, the resulting glucose-chelator conjugates can be radiolabeled with either 99mTc(V) or 188Re(V) in high radiochemical yields (>95%), to furnish separable mixtures of cis- and trans-[M(O)2L2]+ (M = Tc, Re). Single photon emission computed tomography (SPECT) imaging and ex vivo biodistribution in healthy mice show that each isomer possesses favorable pharmacokinetic properties, with rapid clearance from blood circulation via a renal pathway. Both cis-[99mTc(O)2L2]+ and trans-[99mTc(O)2L2]+ exhibit high stability in serum. This new class of functionalized diphosphine chelators has the potential to provide access to receptor-targeted dual diagnostic/therapeutic pairs of radiopharmaceutical agents, for molecular 99mTc SPECT imaging and 188Re systemic radiotherapy.
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Affiliation(s)
- Rachel
E. Nuttall
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, United Kingdom
- School
of Biomedical Engineering and Imaging Sciences, King’s College London, 4th Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH, United Kingdom
| | - Truc Thuy Pham
- School
of Biomedical Engineering and Imaging Sciences, King’s College London, 4th Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH, United Kingdom
| | - Ailis C. Chadwick
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, United Kingdom
| | - Ingebjørg N. Hungnes
- School
of Biomedical Engineering and Imaging Sciences, King’s College London, 4th Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH, United Kingdom
| | - George Firth
- School
of Biomedical Engineering and Imaging Sciences, King’s College London, 4th Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH, United Kingdom
| | - Martin A. Heckenast
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, United Kingdom
| | - Hazel A. Sparkes
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, United Kingdom
| | - M. Carmen Galan
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, United Kingdom
| | - Michelle T. Ma
- School
of Biomedical Engineering and Imaging Sciences, King’s College London, 4th Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH, United Kingdom
| | - Paul G. Pringle
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, United Kingdom
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2
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Thomas RM, Obbard DB, Lipshutz BH. Challenging cross couplings, in water, aided by in situ iodination of (hetero)aromatic bromides. Chem Sci 2023; 14:13503-13507. [PMID: 38033910 PMCID: PMC10686040 DOI: 10.1039/d3sc04199a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023] Open
Abstract
Palladium-catalyzed reactions that involve functionalized substrates are oftentimes problematic. Those involving aryl or heteroaryl bromides that are either resistant to, or inefficient in such couplings present challenges that are difficult to overcome and may require development of an entirely new route, or worse, no opportunity to install the desired group using a standard coupling strategy. In this report, we describe a solution that allows for the in situ conversion of such bromo educts to transient iodide derivatives that can be made and used under environmentally responsible conditions, for subsequent reactions to highly functionalized, complex targets.
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Affiliation(s)
- Rohan M Thomas
- Department of Chemistry and Biochemistry, University of California Santa Barbara CA 93106 USA
| | - David B Obbard
- Department of Chemistry and Biochemistry, University of California Santa Barbara CA 93106 USA
| | - Bruce H Lipshutz
- Department of Chemistry and Biochemistry, University of California Santa Barbara CA 93106 USA
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3
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Lukin RY, Sukhov AV, Kachmarzhik AD, Dobrynin AB, Khayarov KR, Sinyashin OG, Yakhvarov DG. Synthesis, X-ray Structure, and Catalytic Activity in the Hydrosilylation Process of Platinum Complexes Bearing Buchwald Ligands. Organometallics 2023. [DOI: 10.1021/acs.organomet.2c00671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Ruslan Yu. Lukin
- Alexander Butlerov Institute of Chemistry, Kazan Federal University, Kremlyovskaya Str. 29/1, 420008 Kazan, Russian Federation
| | - Aleksander V. Sukhov
- Alexander Butlerov Institute of Chemistry, Kazan Federal University, Kremlyovskaya Str. 29/1, 420008 Kazan, Russian Federation
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Str. 8, 420088 Kazan, Russian Federation
| | - Aleksander D. Kachmarzhik
- Alexander Butlerov Institute of Chemistry, Kazan Federal University, Kremlyovskaya Str. 29/1, 420008 Kazan, Russian Federation
| | - Alexey B. Dobrynin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Str. 8, 420088 Kazan, Russian Federation
| | - Khasan R. Khayarov
- Alexander Butlerov Institute of Chemistry, Kazan Federal University, Kremlyovskaya Str. 29/1, 420008 Kazan, Russian Federation
| | - Oleg G. Sinyashin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Str. 8, 420088 Kazan, Russian Federation
| | - Dmitry G. Yakhvarov
- Alexander Butlerov Institute of Chemistry, Kazan Federal University, Kremlyovskaya Str. 29/1, 420008 Kazan, Russian Federation
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Str. 8, 420088 Kazan, Russian Federation
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4
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Peng L, Zhao Y, Okuda Y, Le L, Tang Z, Yin SF, Qiu R, Orita A. Process-Divergent Syntheses of 4- and 5-Sulfur-Functionalized 1,2,3-Triazoles via Copper-Catalyzed Azide-Alkyne Cycloadditions of 1-Phosphinyl-2-sulfanylethynes. J Org Chem 2023. [PMID: 36763008 DOI: 10.1021/acs.joc.2c02876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
4-Sulfanyl-substituted 1,2,3-triazoles were provided regioselectively with good yields and broad scope via consecutive t-BuOK-promoted dephosphinylation of 1-phosphinyl-2-sulfanylethynes and copper-catalyzed azide-alkyne cycloadditions (CuAAC) with alkyl azides. Unsymmetrically substituted ditriazoles were successfully obtained using a tandem dephosphinylative CuAAC protocol with diazides. Direct CuAAC of the 1-phosphinyl-2-sulfanylethynes with azides afforded regioisomeric mixtures of 4-phosphinyl-5-sulfanyl- and 5-phosphinyl-4-sulfanyl-1,2,3-triazoles that were easily separable from one another. When the phosphinyl- and sulfanyl-substituted triazoles were treated with t-BuOK, the dephosphination proceeded smoothly, yielding the corresponding 5- and 4-sulfanyltriazoles, respectively. 5-(1-Aryl-1-hydroxymethyl)-4-sulfanyltriazoles were synthesized by stepwise treatment of 5-phosphinyl-4-sulfanyltriazole with MeMgBr and arylaldehydes. Additionally, Ph2P(O) and RS groups in the triazoles were easily converted to Ph2P and RSO2 by PhSiH3-reduction and m-CPBA-oxidation, respectively. Following the dephosphinylative CuAAC of 1-phosphinyl-2-(4-t-butylphenylsulfanyl)ethyne with aryl azides and m-CPBA-oxidation, potent antagonists of pregnane X receptor LC-58 and LC-59 were successfully produced.
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Affiliation(s)
- Lifen Peng
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, PR China.,State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Yanting Zhao
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, PR China
| | - Yasuhiro Okuda
- Department of Applied Chemistry, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama 700-0005, Japan
| | - Liyuan Le
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Zilong Tang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, PR China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Akihiro Orita
- Department of Applied Chemistry, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama 700-0005, Japan
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5
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Caracelli I, Teixeira WKO, de Albuquerque DY, Schwab RS, Tiekink ERT. The crystal structure of 1-(2-iodophenyl)-4-phenyl-1 H-1,2,3-triazole, C 14H 10IN 3. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C14H10IN3, orthorhombic, P212121 (no. 19), a = 8.0778(6) Å, b = 11.1909(10) Å, c = 14.3114(12) Å, V = 1293.72(19) Å3, Z = 4, R
gt
(F) = 0.0312, wR
ref
(F
2) = 0.0790, T = 290 K.
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Affiliation(s)
- Ignez Caracelli
- Departmento de Física , BioMat, Universidade Federal de São Carlos , C. P. 676, 13565-905 São Carlos SP , Brazil
| | - Wystan K. O. Teixeira
- Departamento de Química , Laboratório de Síntese, Catálise e Modelagem Molecular (SintCatMol), CERSusChem, Universidade Federal de São Carlos , C. P. 676, 13565-905 São Carlos , SP , Brazil
| | - Danilo Yano de Albuquerque
- Departamento de Química , Laboratório de Síntese, Catálise e Modelagem Molecular (SintCatMol), CERSusChem, Universidade Federal de São Carlos , C. P. 676, 13565-905 São Carlos , SP , Brazil
| | - Ricardo S. Schwab
- Departamento de Química , Laboratório de Síntese, Catálise e Modelagem Molecular (SintCatMol), CERSusChem, Universidade Federal de São Carlos , C. P. 676, 13565-905 São Carlos , SP , Brazil
| | - Edward R. T. Tiekink
- Research Centre for Crystalline Materials, School of Medical and Life Sciences, Sunway University , 47500 Bandar Sunway , Selangor Darul Ehsan , Malaysia
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6
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Pandey MK, Kote BS, Mondal D, Kunchur HS, Radhakrishna L, Balakrishna MS. Transition Metal Complexes of 2,6‐Dibenzhydryl Derived Bisphosphine: Synthesis, Structural Studies and Palladium Complex Promoted Suzuki‐Miyaura Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202201245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Madhusudan K. Pandey
- Phosphorus Laboratory Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Basvaraj S. Kote
- Phosphorus Laboratory Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Dipanjan Mondal
- Phosphorus Laboratory Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Harish S. Kunchur
- Phosphorus Laboratory Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Latchupatula Radhakrishna
- Phosphorus Laboratory Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Maravanji S. Balakrishna
- Phosphorus Laboratory Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
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7
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Namdeo PK, Sheokand S, Kote BS, Radhakrishna L, Kunchur HS, Saini P, Ramakrishnan S, Balakrishna MS. Ru II complexes of 1,2,3-triazole appended tertiary phosphines, [P(Ph){( o-C 6H 4)(1,2,3-N 3C(Ph)CH} 2] and [P(Ph){ o-C 6H 4(CCH)-(1,2,3-N 3-Ph)} 2]: highly active catalysts for transfer hydrogenation of carbonyl/nitro compounds and for α-alkylation of ketones. Dalton Trans 2022; 51:6795-6808. [PMID: 35420618 DOI: 10.1039/d2dt00361a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The synthesis of two new 1,2,3-triazole appended monophosphines [P(Ph){(o-C6H4)(1,2,3-N3C(Ph)CH}2] (1) and [P(Ph){o-C6H4(CCH)(1,2,3-N3-Ph)}2] (2) and their RuII complexes is described. The reactions of 1 and 2 with [Ru(PPh3)3Cl2] in a 1 : 1 molar ratio produced cationic complexes 3 and 4, respectively. Both the complexes showed very high catalytic activity towards transfer hydrogenation, nitro reduction, and α-alkylation reactions and afforded the corresponding products in good to excellent yields. The free energy of β-hydride elimination from the respective Ru-alkoxide intermediates, a key mechanistic step common to all the three catalytic pathways, was calculated to be close to ergoneutral by density functional theory-based calculations, which is posited to rationalize the catalytic activity of 3. The reduction of aromatic nitro compounds was found to be highly chemoselective and produced the corresponding amines as major products even in the presence of a carbonyl group. The triazolyl-N2 coordinated RuII-NPN complex 3 showed better catalytic activity compared to the triazolyl-N3 coordinated complex 4.
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Affiliation(s)
- Pavan K Namdeo
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Sonu Sheokand
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Basvaraj S Kote
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Latchupatula Radhakrishna
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Harish S Kunchur
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Prateek Saini
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Srinivasan Ramakrishnan
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Maravanji S Balakrishna
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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8
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Radhakrishna L, Kote BS, Kunchur HS, Pandey MK, Mondal D, Balakrishna MS. 1,2,3-Triazole based ligands with phosphine and pyridine functionalities: synthesis, Pd II and Pt II chemistry and catalytic studies. Dalton Trans 2022; 51:5480-5493. [PMID: 35293924 DOI: 10.1039/d2dt00112h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This manuscript describes the syntheses of pyridine appended triazole-based mono- and bisphosphines, [o-Ph2P(C6H4){1,2,3-N3C(Py)C(H)}] (2), [o-Br(C6H4){1,2,3-N3C(Py)C(PPh2)}] (3), [C6H5{1,2,3-N3C(Py)C(PPh2)}] (4), [Ph2P(C6H4){1,2,3-N3C(Py)C(PPh2)}] (5) and [3-Ph2P-2-{1,2,3-N3C(Ph)C(PPh2)}C5H3N] (6), their palladium and platinum chemistry and catalytic applications. These ligands upon treatment with [M(COD)Cl2] (M = Pd or Pt) yielded complexes with different coordination modes, depending on the reaction conditions. Both κ2-P,N and κ2-P,P coordination modes were observed in many of the complexes indicating the ambidentate nature of these ligands. Monophosphine 2 in the presence of a base afforded rare fused-5,6-membered PCN pincer complexes [MCl{o-Ph2P(C6H4){1,2,3-N3C(Py)C(H)}}-κ3-P,C,N] (7, M = Pd; 8, M = Pt), whereas the reactions of 4 with [M(COD)Cl2] (M = Pd, Pt) produced κ2-P,N chelate complexes [MCl2{C6H5{1,2,3-N3C(Py)C(PPh2)}-κ2-P,N}] (9, M = Pd; 10, M = Pt). Similar reactions of 5 and 6 resulted in κ2-P,P chelate complexes [MCl2{{3-Ph2P-2-{1,2,3-N3C(Ph)C(PPh2)}C5H3N}-κ2-P,P}] (11, M = Pd; 12, M = Pt) and [MCl2{3-Ph2P-2-{1,2,3-N3C(Ph)C(PPh2)}C5H3N}-κ2-P,P}] (13, M = Pd; 14, M = Pt), respectively. The palladium(II) complexes have shown excellent catalytic activity in the α-alkylation reaction of acetophenone derivatives.
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Affiliation(s)
- Latchupatula Radhakrishna
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Basvaraj S Kote
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Harish S Kunchur
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Madhusudan K Pandey
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Dipanjan Mondal
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Maravanji S Balakrishna
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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9
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Sakai S, Kanemoto K, Fukuzawa SI. Synthesis and Evaluation of Novel Planar‐Chiral Monophosphine Ligands Bearing Ferrocene‐Triazole Backbones. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100967] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Suguru Sakai
- Chuo University Faculty of Science and Engineering Graduate School of Science and Engineering: Chuo Daigaku Rikogakubu Daigakuin Rikogaku Kenkyuka Department of Applied Chemistry JAPAN
| | - Kazuya Kanemoto
- Chuo University Faculty of Science and Engineering Graduate School of Science and Engineering: Chuo Daigaku Rikogakubu Daigakuin Rikogaku Kenkyuka Department of Applied Chemistry Kasuga1-13-27 112-8551 Bunkyo-ku JAPAN
| | - Shin-ichi Fukuzawa
- Chuo University Faculty of Science and Engineering Graduate School of Science and Engineering: Chuo Daigaku Rikogakubu Daigakuin Rikogaku Kenkyuka Department of Applied Chemistry JAPAN
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10
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Kaushal J, Singh S, Nautiyal D, Rao GK, Singh AK, Kumar A. Click chemistry in the synthesis of catalytically relevant organoselenium compounds: development and applications of catalysts for organic synthesis. NEW J CHEM 2022. [DOI: 10.1039/d2nj02364d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Use of click chemistry in synthesizing organoselenium compounds and the applications of metal complexes of such compounds as catalysts for various chemical transformations have been critically analyzed.
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Affiliation(s)
- Jolly Kaushal
- Department of Chemistry, School of Physical Sciences (SoPS), Doon University, Dehradun-248012, Uttarakhand, India
| | - Siddhant Singh
- Department of Chemistry, School of Physical Sciences (SoPS), Doon University, Dehradun-248012, Uttarakhand, India
| | - Divyanshu Nautiyal
- Department of Chemistry, School of Physical Sciences (SoPS), Doon University, Dehradun-248012, Uttarakhand, India
| | - Gyandshwar Kumar Rao
- Department of Chemistry, Biochemistry and Forensic Science, Amity School of Applied Sciences, Amity University Haryana, Gurgaon, Haryana 122413, India
| | - Ajai K. Singh
- Department of Chemistry, Indian Institute of Technology, Delhi, New Delhi, India
| | - Arun Kumar
- Department of Chemistry, School of Physical Sciences (SoPS), Doon University, Dehradun-248012, Uttarakhand, India
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11
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Lamola JL, Adeyinka AS, Malan FP, Moshapo PT, Holzapfel CW, Maumela MC. Exploring steric and electronic parameters of biaryl phosphacycles. NEW J CHEM 2022. [DOI: 10.1039/d1nj05769c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Steric and electronic parameters of the newly developed biaryl phosphacycles derived from the phobane[3.3.1] (Phob) and phosphatrioxa-adamantane (Cg) moieties were quantified from various experimental and theoretical methods.
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Affiliation(s)
- Jairus L. Lamola
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, Kingsway Campus, Auckland Park 2006, South Africa
| | - Adedapo S. Adeyinka
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, Kingsway Campus, Auckland Park 2006, South Africa
| | - Frederick P. Malan
- Department of Chemistry, University of Pretoria, Hatfield Campus, Hartfield 0002, South Africa
| | - Paseka T. Moshapo
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, Kingsway Campus, Auckland Park 2006, South Africa
| | - Cedric W. Holzapfel
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, Kingsway Campus, Auckland Park 2006, South Africa
| | - Munaka Christopher Maumela
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, Kingsway Campus, Auckland Park 2006, South Africa
- Research and Technology, Sasol, 1 Klasie Havenga Rd, Sasolburg 1947, South Africa
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12
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Kote BS, Kunchur HS, Radhakrishna L, Pandey MK, Balakrishna MS. Group 11 metal complexes of the dinucleating triazole appended bisphosphine 1,4-bis(5-(diisopropylphosphaneyl)-1-phenyl-1 H-1,2,3-triazol-4-yl)benzene. Dalton Trans 2021; 50:16782-16794. [PMID: 34766177 DOI: 10.1039/d1dt02803k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of a triazole appended dinucleating bisphosphine 1,4-bis(5-(diisopropylphosphaneyl)-1-phenyl-1H-1,2,3-triazol-4-yl)benzene (2) and its coinage metal complexes are described. The dinucleating bisphosphine 2 was obtained by the temperature-controlled lithiation of 1,4-bis(1-phenyl-1H-1,2,3-triazol-4-yl)benzene (1a) and 1,4-bis(1-(2-bromophenyl)-1H-1,2,3-triazol-4-yl)benzene (1b) followed by the reaction with iPr2PCl. The reactions of 2 with copper(I) halides in 1 : 2 molar ratios yielded the [Cu(μ2-X)]2 dimeric complexes [{Cu(μ2-X)}2(PiPr2N3PhC2)2C6H4] (3, X = Cl; 4, X = Br; and 5, X = I), whereas the reaction of 2 with AgBr resulted in the formation of hetero-cubane complex [{Ag4(μ3-Br)4}{(PiPr2N3PhC2)2C6H4}2] (7). Similar reactions of 2 with AgX in 1 : 2 molar ratios yielded disilver complexes [{Ag(μ2-X)}2{(PiPr2N3PhC2)2C6H4}] (6, X = Cl and 8, X = I). Treatment of 2 with AgOAc in a 1 : 2 molar ratio afforded a dinuclear complex [Ag2(μ2-OAc)2{(PiPr2N3PhC2)2(C6H4)}] (9) with one of the acetate ligands bridging the two metal centres in the side-on mode, whereas the other one adopting the end-on mode keeping the >CO group uncoordinated. The reaction of 2 with two equivalents of [AuCl(SMe2)] afforded the digold complex [(AuClPiPr2N3PhC2)2C6H4] (10). The molecular structures of 2-5 and 7-10 were confirmed by single crystal X-ray analysis. Non-covalent interactions between Cu and Carene were observed in the molecular structures of 3, 4 and 5. These weak interactions were also assessed by DFT calculations in terms of their non-covalent interaction plots (NCI) and QTAIM analyses.
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Affiliation(s)
- Basvaraj S Kote
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Mumbai-400 076, India.
| | - Harish S Kunchur
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Mumbai-400 076, India.
| | - Latchupatula Radhakrishna
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Mumbai-400 076, India.
| | - Madhusudan K Pandey
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Mumbai-400 076, India.
| | - Maravanji S Balakrishna
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Mumbai-400 076, India.
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13
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Pacifico R, Destro D, Gillick-Healy MW, Kelly BG, Adamo MFA. Preparation of Acidic 5-Hydroxy-1,2,3-triazoles via the Cycloaddition of Aryl Azides with β-Ketoesters. J Org Chem 2021; 86:11354-11360. [PMID: 34314172 PMCID: PMC8419836 DOI: 10.1021/acs.joc.1c00778] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, a high-yielding cycloaddition reaction of β-ketoesters and azides to provide 1,2,3-triazoles is described. The reactions employing 2-unsubstituted β-ketoesters were found to provide 5-methyl-1,2,3-triazoles, whereas 2-alkyl-substituted β-ketoesters provided 5-hydroxy-1,2,3-triazoles (shown to be relatively acidic) in high yields and as single regioisomers. Several novel compounds were reported and characterized including long-chain 5-hydroxy-1,2,3-triazoles potentially bioisosteric to hydroxamic acids.
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Affiliation(s)
- Roberta Pacifico
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Dario Destro
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Malachi W Gillick-Healy
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland.,KelAda Pharmachem Ltd., A1.01 Science Centre South, Belfield, Dublin 4, Ireland
| | - Brian G Kelly
- KelAda Pharmachem Ltd., A1.01 Science Centre South, Belfield, Dublin 4, Ireland
| | - Mauro F A Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
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14
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Lamola JL, Moshapo PT, Holzapfel CW, Maumela MC. Evaluation of P-bridged biaryl phosphine ligands in palladium-catalysed Suzuki-Miyaura cross-coupling reactions. RSC Adv 2021; 11:26883-26891. [PMID: 35480011 PMCID: PMC9037619 DOI: 10.1039/d1ra04947j] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 07/18/2021] [Indexed: 12/14/2022] Open
Abstract
A family of biaryl phosphacyclic ligands derived from phobane and phosphatrioxa-adamantane frameworks is described. The rigid biaryl phosphacycles are efficient for Suzuki-Miyaura cross-coupling of aryl bromides and chlorides. In particular, coupling reactions of the challenging sterically hindered and heterocyclic substrates were viable at room temperature.
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Affiliation(s)
- Jairus L Lamola
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences University of Johannesburg, Kingsway Campus Auckland Park 2006 South Africa
| | - Paseka T Moshapo
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences University of Johannesburg, Kingsway Campus Auckland Park 2006 South Africa
| | - Cedric W Holzapfel
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences University of Johannesburg, Kingsway Campus Auckland Park 2006 South Africa
| | - Munaka Christopher Maumela
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences University of Johannesburg, Kingsway Campus Auckland Park 2006 South Africa .,Sasol (Pty) Ltd, Research and Technology (R & T) 1 Klasie Havenga Rd Sasolburg 1947 South Africa
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15
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Maftei CV, Franz MH, Kleeberg C, Neda I. New Members of the Cinchona Alkaloids Family: Assembly of the Triazole Heterocycle at the 6' Position. Molecules 2021; 26:molecules26113357. [PMID: 34199504 PMCID: PMC8199664 DOI: 10.3390/molecules26113357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 12/04/2022] Open
Abstract
The substance class of the well-known Cinchona alkaloids is widened by 6′-Amino-cinchonine and 6′-Amino-cinchonidine, novel compounds which incorporate a primary amino function in the quinolinic ring system. These key intermediates open the field for a range of fruitful chemistry. Here is described a short and direct pathway for the synthesis of triazole containing derivatives of the above-mentioned substances using the [3 + 2] Huisgen cycloaddition. For this purpose, the amines were first converted into the corresponding azides. Based on this, non-substituted and silyl-protected triazoles were synthesized as examples. Furthermore, didehydrated derivatives of quincorine and quincoridine were used as addition partners, resulting in compounds that carry the quinuclidine ring of the cinchona alkaloids at both ends. Some of these compounds were examined radiographically to investigate the position of the quinuclidine ring to the triazole. The solid-state structures of compounds 10, 11 and 28 were determined by X-ray diffraction analyses.
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Affiliation(s)
| | - Martin Heiko Franz
- InnoChemTech GmbH, Hagenring 30, 38106 Braunschweig, Germany; (C.V.M.); (M.H.F.)
| | - Christian Kleeberg
- Institut für Anorganische und Analytische Chemie, Technische Universität ‘Carola-Wilhelmina’ Braunschweig, Hagenring 30, 38106 Braunschweig, Germany;
| | - Ion Neda
- Institut für Anorganische und Analytische Chemie, Technische Universität ‘Carola-Wilhelmina’ Braunschweig, Hagenring 30, 38106 Braunschweig, Germany;
- Correspondence:
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16
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Talukder MM, Cue JMO, Miller JT, Gamage PL, Aslam A, McCandless GT, Biewer MC, Stefan MC. Ligand Steric Effects of α-Diimine Nickel(II) and Palladium(II) Complexes in the Suzuki-Miyaura Cross-Coupling Reaction. ACS OMEGA 2020; 5:24018-24032. [PMID: 32984724 PMCID: PMC7513363 DOI: 10.1021/acsomega.0c03415] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 08/21/2020] [Indexed: 05/13/2023]
Abstract
Nickel catalysts represent a low cost and environmentally friendly alternative to palladium-based catalytic systems for Suzuki-Miyaura cross-coupling (SMC) reactions. However, nickel catalysts have suffered from poor air, moisture, and thermal stabilities, especially at high catalyst loading, requiring controlled reaction conditions. In this report, we examine a family of mono- and dinuclear Ni(II) and Pd(II) complexes with a diverse and versatile α-diimine ligand environment for SMC reactions. To evaluate the ligand steric effects, including the bite angle in the reaction outcomes, the structural variation of the complexes was achieved by incorporating iminopyridine- and acenaphthene-based ligands. Moreover, the impact of substrate bulkiness was investigated by reacting various aryl bromides with phenylboronic acid, 2-naphthylboronic acid, and 9-phenanthracenylboronic acid. Yields were the best with the dinuclear complex, being nearly quantitative (93-99%), followed by the mononuclear complexes, giving yields of 78-98%. Consequently, α-diimine-based ligands have the potential to deliver Ni-based systems as sustainable catalysts in SMC.
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Affiliation(s)
- Md Muktadir Talukder
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson 75080, Texas, United States
| | - John Michael O. Cue
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson 75080, Texas, United States
| | - Justin T. Miller
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson 75080, Texas, United States
| | - Prabhath L. Gamage
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson 75080, Texas, United States
| | - Amina Aslam
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson 75080, Texas, United States
| | - Gregory T. McCandless
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson 75080, Texas, United States
| | - Michael C. Biewer
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson 75080, Texas, United States
| | - Mihaela C. Stefan
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson 75080, Texas, United States
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17
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Bayardon J, Rousselle B, Rousselin Y, Bonnin Q, Malacea-Kabbara R. P-Chirogenic Triazole-Based Phosphine: Synthesis, Coordination Chemistry, and Asymmetric Catalysis. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jérôme Bayardon
- ICMUB-OCS (UMR-CNRS 6302); Institut de Chimie Moléculaire de l'Université de Bourgogne-Franche-Comté; 19 avenue A. Savary BP 47870 21078 Dijon CEDEX France
| | - Benjamin Rousselle
- ICMUB-OCS (UMR-CNRS 6302); Institut de Chimie Moléculaire de l'Université de Bourgogne-Franche-Comté; 19 avenue A. Savary BP 47870 21078 Dijon CEDEX France
| | - Yoann Rousselin
- ICMUB-OCS (UMR-CNRS 6302); Institut de Chimie Moléculaire de l'Université de Bourgogne-Franche-Comté; 19 avenue A. Savary BP 47870 21078 Dijon CEDEX France
| | - Quentin Bonnin
- ICMUB-OCS (UMR-CNRS 6302); Institut de Chimie Moléculaire de l'Université de Bourgogne-Franche-Comté; 19 avenue A. Savary BP 47870 21078 Dijon CEDEX France
| | - Raluca Malacea-Kabbara
- ICMUB-OCS (UMR-CNRS 6302); Institut de Chimie Moléculaire de l'Université de Bourgogne-Franche-Comté; 19 avenue A. Savary BP 47870 21078 Dijon CEDEX France
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18
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Mondal D, Balakrishna MS. Triazole Appended Phosphines: Synthesis, Palladium Complexes, and Catalytic Studies. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000178] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dipanjan Mondal
- Phosphorus Laboratory; Department of Chemistry; Indian Institute of Technology Bombay; 400076 Powai Mumbai India
| | - Maravanji S. Balakrishna
- Phosphorus Laboratory; Department of Chemistry; Indian Institute of Technology Bombay; 400076 Powai Mumbai India
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19
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Choy PY, Yuen OY, Leung MP, Chow WK, Kwong FY. A Highly Efficient Monophosphine Ligand for Parts per Million Levels Pd-Catalyzed Suzuki-Miyaura Coupling of (Hetero)Aryl Chlorides. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000068] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Pui Ying Choy
- Shenzhen Municipal Key Laboratory of Chemical Synthesis of Medicinal Organic Molecules; Shenzhen Research Institute; The Chinese University of Hong Kong; No. 10, Second Yuexing Road 518507 Shenzhen P. R. China
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; Shenzhen Research Institute; The Chinese University of Hong Kong; China
| | - On Ying Yuen
- Shenzhen Municipal Key Laboratory of Chemical Synthesis of Medicinal Organic Molecules; Shenzhen Research Institute; The Chinese University of Hong Kong; No. 10, Second Yuexing Road 518507 Shenzhen P. R. China
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; Shenzhen Research Institute; The Chinese University of Hong Kong; China
| | - Man Pan Leung
- Shenzhen Municipal Key Laboratory of Chemical Synthesis of Medicinal Organic Molecules; Shenzhen Research Institute; The Chinese University of Hong Kong; No. 10, Second Yuexing Road 518507 Shenzhen P. R. China
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; Shenzhen Research Institute; The Chinese University of Hong Kong; China
| | - Wing Kin Chow
- Shenzhen Research Institute; The Hong Kong Polytechnic University Shenzhen Research Institute (SZRI); 518057 Shenzhen P. R. China
| | - Fuk Yee Kwong
- Shenzhen Municipal Key Laboratory of Chemical Synthesis of Medicinal Organic Molecules; Shenzhen Research Institute; The Chinese University of Hong Kong; No. 10, Second Yuexing Road 518507 Shenzhen P. R. China
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; Shenzhen Research Institute; The Chinese University of Hong Kong; China
- Shenzhen Research Institute; The Hong Kong Polytechnic University Shenzhen Research Institute (SZRI); 518057 Shenzhen P. R. China
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20
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Palladium-catalyzed selective ortho C–H alkoxylation at 4-aryl of 1, 4-disubstituted 1, 2, 3-triazoles. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.130985] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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21
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Radhakrishna L, Kunchur HS, Namdeo PK, Butcher RJ, Balakrishna MS. New 1,2,3-triazole based bis- and trisphosphine ligands: synthesis, transition metal chemistry and catalytic studies. Dalton Trans 2020; 49:3434-3449. [DOI: 10.1039/c9dt04302k] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This paper describes a novel synthetic methodology for the preparation of 1,2,3-triazole based phosphines and their transition metal chemistry and preliminary catalytic studies.
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Affiliation(s)
| | - Harish S. Kunchur
- Phosphorus Laboratory
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Pavan K. Namdeo
- Phosphorus Laboratory
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
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22
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Zhao Y, Wakeling MG, Meloni F, Sum TJ, van Nguyen H, Buckley BR, Davies PW, Fossey JS. Balancing Bulkiness in Gold(I) Phosphino-triazole Catalysis. European J Org Chem 2019; 2019:5540-5548. [PMID: 31598094 PMCID: PMC6774259 DOI: 10.1002/ejoc.201900850] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Indexed: 11/23/2022]
Abstract
The syntheses of a series of 1-phenyl-5-phosphino 1,2,3-triazoles are disclosed, within which, the phosphorus atom (at the 5-position of a triazole) is appended by one, two or three triazole motifs, and the valency of the phosphorus(III) atom is completed by two, one or zero ancillary (phenyl or cyclohexyl) groups respectively. This series of phosphines was compared with tricyclohexylphosphine and triphenylphosphine to study the effect of increasing the number of triazoles appended to the central phosphorus atom from zero to three triazoles. Gold(I) chloride complexes of the synthesised ligands were prepared and analysed by techniques including single-crystal X-ray diffraction structure determination. Gold(I) complexes were also prepared from 1-(2,6-dimethoxy)-phenyl-5-dicyclohexyl-phosphino 1,2,3-triazole and 1-(2,6-dimethoxy)-phenyl-5-diphenyl-phosphino 1,2,3-triazole ligands. The crystal structures thus obtained were examined using the SambVca (2.0) web tool and percentage buried volumes determined. The effectiveness of these gold(I) chloride complexes to serve as precatalysts for alkyne hydration were assessed. Furthermore, the regioselectivity of hydration of but-1-yne-1,4-diyldibenzene was probed.
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Affiliation(s)
- Yiming Zhao
- School of ChemistryUniversity of BirminghamEdgbastonB15 2TTBirminghamWest MidlandsUK
| | - Matthew G. Wakeling
- School of ChemistryUniversity of BirminghamEdgbastonB15 2TTBirminghamWest MidlandsUK
| | - Fernanda Meloni
- School of ChemistryUniversity of BirminghamEdgbastonB15 2TTBirminghamWest MidlandsUK
| | - Tze Jing Sum
- Department of ChemistryLoughborough UniversityLE11 3TULoughboroughLeicestershireUK
| | - Huy van Nguyen
- School of ChemistryUniversity of BirminghamEdgbastonB15 2TTBirminghamWest MidlandsUK
| | - Benjamin R. Buckley
- Department of ChemistryLoughborough UniversityLE11 3TULoughboroughLeicestershireUK
| | - Paul W. Davies
- School of ChemistryUniversity of BirminghamEdgbastonB15 2TTBirminghamWest MidlandsUK
| | - John S. Fossey
- School of ChemistryUniversity of BirminghamEdgbastonB15 2TTBirminghamWest MidlandsUK
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23
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Li X, Payne DT, Ampolu B, Bland N, Brown JT, Dutton MJ, Fitton CA, Gulliver A, Hale L, Hamza D, Jones G, Lane R, Leach AG, Male L, Merisor EG, Morton MJ, Quy AS, Roberts R, Scarll R, Schulz-Utermoehl T, Stankovic T, Stevenson B, Fossey JS, Agathanggelou A. Derivatisation of parthenolide to address chemoresistant chronic lymphocytic leukaemia. MEDCHEMCOMM 2019; 10:1379-1390. [PMID: 32952998 PMCID: PMC7478165 DOI: 10.1039/c9md00297a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 07/03/2019] [Indexed: 12/13/2022]
Abstract
Parthenolide is a natural product that exhibits anti-leukaemic activity, however, its clinical use is limited by its poor bioavailability. It may be extracted from feverfew and protocols for growing, extracting and derivatising it are reported. A novel parthenolide derivative with good bioavailability and pharmacological properties was identified through a screening cascade based on in vitro anti-leukaemic activity and calculated "drug-likeness" properties, in vitro and in vivo pharmacokinetics studies and hERG liability testing. In vitro studies showed the most promising derivative to have comparable anti-leukaemic activity to DMAPT, a previously described parthenolide derivative. The newly identified compound was shown to have pro-oxidant activity and in silico molecular docking studies indicate a prodrug mode of action. A synthesis scheme is presented for the production of amine 7 used in the generation of 5f.
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Affiliation(s)
- Xingjian Li
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK.
| | - Daniel T Payne
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK.
| | - Badarinath Ampolu
- Sygnature Discovery, The Discovery Building, BioCity, Pennyfoot Street, Nottingham, NG1 1GR, UK
| | - Nicholas Bland
- Sygnature Discovery, The Discovery Building, BioCity, Pennyfoot Street, Nottingham, NG1 1GR, UK
| | - Jane T Brown
- Sygnature Discovery, The Discovery Building, BioCity, Pennyfoot Street, Nottingham, NG1 1GR, UK
| | - Mark J Dutton
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK.
| | - Catherine A Fitton
- Institute for Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK.
| | - Abigail Gulliver
- Winterbourne Botanic Garden, University of Birmingham, 58 Edgbaston Park Road, Edgbaston, Birmingham, West Midlands B15 2RT, UK
| | - Lee Hale
- Winterbourne Botanic Garden, University of Birmingham, 58 Edgbaston Park Road, Edgbaston, Birmingham, West Midlands B15 2RT, UK
| | - Daniel Hamza
- Sygnature Discovery, The Discovery Building, BioCity, Pennyfoot Street, Nottingham, NG1 1GR, UK
| | - Geraint Jones
- Sygnature Discovery, The Discovery Building, BioCity, Pennyfoot Street, Nottingham, NG1 1GR, UK
| | - Rebecca Lane
- Sygnature Discovery, The Discovery Building, BioCity, Pennyfoot Street, Nottingham, NG1 1GR, UK
| | - Andrew G Leach
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK
| | - Louise Male
- X-Ray Crystallography Facility, School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK
| | - Elena G Merisor
- Sygnature Discovery, The Discovery Building, BioCity, Pennyfoot Street, Nottingham, NG1 1GR, UK
| | - Michael J Morton
- ApconiX Ltd, Alderly Park, Nether Alderly, Cheshire, SK10 4TG, UK
| | - Alex S Quy
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK.
| | - Ruth Roberts
- ApconiX Ltd, Alderly Park, Nether Alderly, Cheshire, SK10 4TG, UK
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK
| | - Rosanna Scarll
- Institute for Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK.
| | | | - Tatjana Stankovic
- Institute for Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK.
| | - Brett Stevenson
- Sygnature Discovery, The Discovery Building, BioCity, Pennyfoot Street, Nottingham, NG1 1GR, UK
| | - John S Fossey
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK.
| | - Angelo Agathanggelou
- Institute for Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK.
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24
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Topchiy MA, Ageshina AA, Chesnokov GA, Sterligov GK, Rzhevskiy SA, Gribanov PS, Osipov SN, Nechaev MS, Asachenko AF. Alkynyl‐ or Azido‐Functionalized 1,2,3‐Triazoles: Selective MonoCuAAC Promoted by Physical Factors. ChemistrySelect 2019. [DOI: 10.1002/slct.201902135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Maxim A. Topchiy
- A. V. Topchiev Institute of Petrochemical SynthesisRussian Academy of Sciences 29 Leninsky Prospect 119991 Moscow Russian Federation
- Department of ChemistryM. V. Lomonosov Moscow State University, 1/3 Leninskie gory 119991 Moscow Russian Federation
| | - Alexandra A. Ageshina
- A. V. Topchiev Institute of Petrochemical SynthesisRussian Academy of Sciences 29 Leninsky Prospect 119991 Moscow Russian Federation
| | - Gleb A. Chesnokov
- A. V. Topchiev Institute of Petrochemical SynthesisRussian Academy of Sciences 29 Leninsky Prospect 119991 Moscow Russian Federation
| | - Grigorii K. Sterligov
- A. V. Topchiev Institute of Petrochemical SynthesisRussian Academy of Sciences 29 Leninsky Prospect 119991 Moscow Russian Federation
- Department of ChemistryM. V. Lomonosov Moscow State University, 1/3 Leninskie gory 119991 Moscow Russian Federation
| | - Sergey A. Rzhevskiy
- A. V. Topchiev Institute of Petrochemical SynthesisRussian Academy of Sciences 29 Leninsky Prospect 119991 Moscow Russian Federation
| | - Pavel S. Gribanov
- A. V. Topchiev Institute of Petrochemical SynthesisRussian Academy of Sciences 29 Leninsky Prospect 119991 Moscow Russian Federation
- A. N. Nesmeyanov Institute of Organoelement CompoundsRussian Academy of Sciences 28 Vavilov str. 119991 Moscow Russian Federation
| | - Sergey N. Osipov
- A. N. Nesmeyanov Institute of Organoelement CompoundsRussian Academy of Sciences 28 Vavilov str. 119991 Moscow Russian Federation
| | - Mikhail S. Nechaev
- A. V. Topchiev Institute of Petrochemical SynthesisRussian Academy of Sciences 29 Leninsky Prospect 119991 Moscow Russian Federation
- Department of ChemistryM. V. Lomonosov Moscow State University, 1/3 Leninskie gory 119991 Moscow Russian Federation
| | - Andrey F. Asachenko
- A. V. Topchiev Institute of Petrochemical SynthesisRussian Academy of Sciences 29 Leninsky Prospect 119991 Moscow Russian Federation
- Department of ChemistryM. V. Lomonosov Moscow State University, 1/3 Leninskie gory 119991 Moscow Russian Federation
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25
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Synthesis of the First Resorcin[4]arene-Functionalized Triazolium Salts and Their Use in Suzuki–Miyaura Cross-Coupling Reactions. Catalysts 2019. [DOI: 10.3390/catal9040388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Two bulky triazolium salts, namely 1-{4(24),6(10),12(16),18(22)-tetramethylenedioxy- 2,8,14,20-tetrapentylresorcin[4]arene-5-yl}-4-phenyl-3-methyl-1H-1,2,3-triazolium tetrafluoro borate (1) and 1,4-bis{4(24),6(10),12(16),18(22)-tetramethylenedioxy-2,8,14,20-tetrapentyl resorcin[4]arene-5-yl}-3-methyl-1H-1,2,3-triazolium iodide (2), have been synthesized and assessed in the palladium-catalyzed Suzuki–Miyaura cross-coupling of aryl chlorides, with aryl boronic acids. As a general trend, the reaction rates obtained with 1 were significantly higher (up to 5 times) than those observed for 2, this mainly reflected a sterically more accessible metal center in the catalytic intermediates formed with 1. The presence of flexible pentyl chains in these intermediates, which might sterically interact with the metal center, when the latter adopts an exo-orientation with respect to the cavity, were likely responsible for the observed good performance.
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26
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Zhao Y, van Nguyen H, Male L, Craven P, Buckley BR, Fossey JS. Phosphino-Triazole Ligands for Palladium-Catalyzed Cross-Coupling. Organometallics 2018; 37:4224-4241. [PMID: 30524158 PMCID: PMC6265957 DOI: 10.1021/acs.organomet.8b00539] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Indexed: 11/29/2022]
Abstract
Twelve 1,5-disubtituted and fourteen 5-substituted 1,2,3-triazole derivatives bearing diaryl or dialkyl phosphines at the 5-position were synthesized and used as ligands for palladium-catalyzed Suzuki-Miyaura cross-coupling reactions. Bulky substrates were tested, and lead-like product formation was demonstrated. The online tool SambVca2.0 was used to assess steric parameters of ligands and preliminary buried volume determination using XRD-obtained data in a small number of cases proved to be informative. Two modeling approaches were compared for the determination of the buried volume of ligands where XRD data was not available. An approach with imposed steric restrictions was found to be superior in leading to buried volume determinations that closely correlate with observed reaction conversions. The online tool LLAMA was used to determine lead-likeness of potential Suzuki-Miyaura cross-coupling products, from which 10 of the most lead-like were successfully synthesized. Thus, confirming these readily accessible triazole-containing phosphines as highly suitable ligands for reaction screening and optimization in drug discovery campaigns.
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Affiliation(s)
- Yiming Zhao
- School of Chemistry and X-ray Crystallography Facility, School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, United Kingdom
| | - Huy van Nguyen
- School of Chemistry and X-ray Crystallography Facility, School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, United Kingdom
| | - Louise Male
- School of Chemistry and X-ray Crystallography Facility, School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, United Kingdom
| | - Philip Craven
- School of Chemistry and X-ray Crystallography Facility, School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, United Kingdom
| | - Benjamin R Buckley
- Department of Chemistry, Loughborough University, Loughborough, Leicestershire LE11 3TU, United Kingdom
| | - John S Fossey
- School of Chemistry and X-ray Crystallography Facility, School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, United Kingdom
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