1
|
Moreth D, Hörner G, Müller VVL, Geyer L, Schatzschneider U. Isostructural Series of Ni(II), Pd(II), Pt(II), and Au(III) Azido Complexes with a N^C^N Pincer Ligand to Elucidate Trends in the iClick Reaction Kinetics and Structural Parameters of the Triazolato Products. Inorg Chem 2023; 62:16000-16012. [PMID: 37728290 DOI: 10.1021/acs.inorgchem.3c02122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
An isoelectronic and isostructural series of cyclometalated azido complexes [M(N3)(dpb)] with M = Ni(II), Pd(II), Pt(II), and Au(III) based on the N^C^N pincer ligand 1,3-di(2-pyridyl)phenide (dpb) was characterized by X-ray diffraction analysis and investigated for reactivity in the iClick reaction with a wide range of internal and terminal alkynes by using 1H and 19F NMR spectroscopy. Reaction rate constants were found to increase with greater charge density in the order Ni(II) > Pd(II) > Pt(II) > Au(III). Terminal alkynes R-C≡C-R' with strongly electron-withdrawing groups R and R' exhibited faster kinetics than those with electron-donating substituents in the order CF3 > ketone > ester > H > phenyl ≫ amide, while R = CH3 resulted in complete loss of reactivity. Four symmetrical triazolato complexes [M(triazolatoCOOCH3,COOCH3)(dpb)] with M = Ni(II), Pd(II), Pt(II), and Au(III) as well as four nonsymmetrically substituted triazolato complexes [Pt(triazolatoR,R')(dpb)] originating from terminal and internal alkynes were shown by X-ray crystal structure analysis to exclusively feature N2-coordination of the five-membered ring ligand. However, the Pt(II) triazolato complexes exist as a mixture of N1- and N2-coordinated species in solution. Torsion angles between the mean planes of the N^C^N pincer and the triazolato ligand increase from a nearly coplanar to a perpendicular arrangement when going from Au(III)/Pt(II)/Pd(II) to Ni(II), while different substituents R and R' on the alkyne have no influence on the torsion angle and were rationalized by DFT calculations. Finally, a carbohydrate derivative obtained by glucuronic acid conjugation to methyl propiolate demonstrates the facile biofunctionalization of metal complexes via the iClick reaction.
Collapse
Affiliation(s)
- Dominik Moreth
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Gerald Hörner
- Anorganische Chemie IV, Universität Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Victoria V L Müller
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Lucia Geyer
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Ulrich Schatzschneider
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| |
Collapse
|
2
|
Nealy ES, Reed SJ, Adelmund SM, Badeau BA, Shadish JA, Girard EJ, Pakiam FJ, Mhyre AJ, Price JP, Sarkar S, Kalia V, DeForest CA, Olson JM. Versatile Tissue-Injectable Hydrogels with Extended Hydrolytic Release of Bioactive Protein Therapeutics. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.01.554391. [PMID: 37693598 PMCID: PMC10491173 DOI: 10.1101/2023.09.01.554391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Hydrogels generally have broad utilization in healthcare due to their tunable structures, high water content, and inherent biocompatibility. FDA-approved applications of hydrogels include spinal cord regeneration, skin fillers, and local therapeutic delivery. Drawbacks exist in the clinical hydrogel space, largely pertaining to inconsistent therapeutic exposure, short-lived release windows, and difficulties inserting the polymer into tissue. In this study, we engineered injectable, biocompatible hydrogels that function as a local protein therapeutic depot with a high degree of user-customizability. We showcase a PEG-based hydrogel functionalized with bioorthogonal strain-promoted azide-alkyne cycloaddition (SPAAC) handles for its polymerization and functionalization with a variety of payloads. Small-molecule and protein cargos, including chemokines and antibodies, were site-specifically modified with hydrolysable "azidoesters" of varying hydrophobicity via direct chemical conjugation or sortase-mediated transpeptidation. These hydrolysable esters afforded extended release of payloads linked to our hydrogels beyond diffusion; with timescales spanning days to months dependent on ester hydrophobicity. Injected hydrogels polymerize in situ and remain in tissue over extended periods of time. Hydrogel-delivered protein payloads elicit biological activity after being modified with SPAAC-compatible linkers, as demonstrated by the successful recruitment of murine T-cells to a mouse melanoma model by hydrolytically released murine CXCL10. These results highlight a highly versatile, customizable hydrogel-based delivery system for local delivery of protein therapeutics with payload release profiles appropriate for a variety of clinical needs.
Collapse
Affiliation(s)
- Eric S. Nealy
- Seattle Children’s Research Institute, Seattle WA
- Fred Hutch Cancer Center, Seattle WA
| | | | - Steve M. Adelmund
- Department of Chemical Engineering, University of Washington, Seattle WA
| | - Barry A. Badeau
- Department of Chemical Engineering, University of Washington, Seattle WA
| | - Jared A. Shadish
- Department of Chemical Engineering, University of Washington, Seattle WA
| | - Emily J. Girard
- Seattle Children’s Research Institute, Seattle WA
- Fred Hutch Cancer Center, Seattle WA
| | | | - Andrew J. Mhyre
- Seattle Children’s Research Institute, Seattle WA
- Fred Hutch Cancer Center, Seattle WA
| | - Jason P. Price
- Seattle Children’s Research Institute, Seattle WA
- Fred Hutch Cancer Center, Seattle WA
| | - Surojit Sarkar
- Seattle Children’s Research Institute, Seattle WA
- Department of Pathology, University of Washington, Seattle WA
- Department of Pediatrics, University of Washington, Seattle WA
| | - Vandana Kalia
- Seattle Children’s Research Institute, Seattle WA
- Department of Pediatrics, University of Washington, Seattle WA
| | - Cole A. DeForest
- Department of Chemical Engineering, University of Washington, Seattle WA
- Department of Bioengineering, University of Washington, Seattle WA
- Department of Biochemistry, University of Washington, Seattle WA
- Department of Biology, University of Washington, Seattle WA
- Department of Chemistry, University of Washington, Seattle WA
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle WA
- Institute for Protein Design, University of Washington, Seattle WA
| | - James M. Olson
- Seattle Children’s Research Institute, Seattle WA
- Fred Hutch Cancer Center, Seattle WA
- Department of Pharmacology, University of Washington, Seattle WA
| |
Collapse
|
3
|
Zach T, Geyer F, Kiendl B, Mößeler J, Nguyen O, Schmidpeter T, Schuster P, Nagel C, Schatzschneider U. Electrospray Mass Spectrometry to Study Combinatorial iClick Reactions and Multiplexed Kinetics of [Ru(N 3)(N∧N)(terpy)]PF 6 with Alkynes of Different Steric and Electronic Demand. Inorg Chem 2023; 62:2982-2993. [PMID: 36745056 DOI: 10.1021/acs.inorgchem.2c03377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In a combinatorial approach, a family of ruthenium(II) azido complexes [Ru(N3)(N∧N)(terpy)]PF6 with terpy = 2,2':6',2″-terpyridine and N∧N as a bidentate chelator derived from 2,2'-biypridine and its 4,4'-disubstituted derivatives, 2,2'-bipyrimidine, and 1,10-phenanthroline were reacted with different internal and terminal alkynes to give access to a total of 7 × 7 = 49 triazolato complexes in a room-temperature catalyst-free iClick reaction. The reactants were mixed in a repurposed high-performance liquid chromatography (HPLC) autosampler, and the reaction progress was monitored by direct injection into an electrospray mass spectrometer. The ratio of the peak intensities of [Ru(N3)(N∧N)(terpy)]+ and [Ru(triazolato)(N∧N)(terpy)]+ was converted to a colored heat map for facile visual inspection of the conversion ratio. By automated multiple injections of the reaction mixture in fixed time intervals and plotting peak intensities over reaction time, pseudo-first-order rate constants were easily determined. Finally, nonoverlapping isotope patterns of the azido starting materials and triazolato products enabled multiplexed parallel determination of rate constants for four different ruthenium(II) azido complexes from a single sample vial, thereby reducing experiment time by 75%.
Collapse
Affiliation(s)
- Tristan Zach
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074Würzburg, Germany
| | - Florian Geyer
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074Würzburg, Germany
| | - Benjamin Kiendl
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074Würzburg, Germany
| | - Jan Mößeler
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074Würzburg, Germany
| | - Olivier Nguyen
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074Würzburg, Germany
| | - Thomas Schmidpeter
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074Würzburg, Germany
| | - Patrick Schuster
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074Würzburg, Germany
| | - Christoph Nagel
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074Würzburg, Germany
| | - Ulrich Schatzschneider
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074Würzburg, Germany
| |
Collapse
|
4
|
Shen YH, Ghiviriga I, Abboud KA, Schanze KS, Veige AS. iClick synthesis of network metallopolymers. Dalton Trans 2022; 51:18520-18527. [PMID: 36444537 DOI: 10.1039/d2dt01624a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Described is an approach to preparing the first iClick network metallopolymers with porous properties. Treating digoldazido complex 2-AuN3 with trigoldacetylide 3-AuPPh3 or 3-AuPEt3, trialkyne 3-H, tetragoldacetylide 4-AuPPh3, or tetraalkyne 4-H in CH2Cl2 affords five iClick network metallopolymers 5-AuPPh3, 5-AuPEt3, 5-H, 6-AuPPh3, and 6-H. Confirmation of the iClick network metallopolymers comes from FTIR, 13C solid-state cross-coupling magic angle spinning (CPMAS) NMR spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and nitrogen and CO2 sorption analysis. Employing model complexes 7-AuPPh3, 7-AuPEt3, 7-H, 8-AuPPh3, and 8-H provides structural insights due to the insolubility of iClick network metallopolymers.
Collapse
Affiliation(s)
- Yu-Hsuan Shen
- University of Florida, Department of Chemistry, Center for Catalysis, P.O. Box 117200, Gainesville, FL, 32611, USA.
| | - Ion Ghiviriga
- University of Florida, Department of Chemistry, Center for Catalysis, P.O. Box 117200, Gainesville, FL, 32611, USA.
| | - Khalil A Abboud
- University of Florida, Department of Chemistry, Center for Catalysis, P.O. Box 117200, Gainesville, FL, 32611, USA.
| | - Kirk S Schanze
- University of Texas at San Antonio, Department of Chemistry, One UTSA Circle, San Antonio, TX 78249, USA
| | - Adam S Veige
- University of Florida, Department of Chemistry, Center for Catalysis, P.O. Box 117200, Gainesville, FL, 32611, USA.
| |
Collapse
|
5
|
Shen YH, Esper AM, Ghiviriga I, Abboud KA, Schanze KS, Ehm C, Veige AS. SPAAC iClick: progress towards a bioorthogonal reaction in-corporating metal ions. Dalton Trans 2021; 50:12681-12691. [PMID: 34545891 DOI: 10.1039/d1dt02626g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Combining strain-promoted azide-alkyne cycloaddition (SPAAC) and inorganic click (iClick) reactivity provides access to metal 1,2,3-triazolates. Experimental and computational insights demonstrate that iClick reactivity of the tested metal azides (LM-N3, M = Au, W, Re, Ru and Pt) depends on the accessibility of the azide functionality rather than electronic effects imparted by the metal. SPAAC iClick reactivity with cyclooctyne is observed when the azide functionality is sterically unencumbered, e.g. [Au(N3)(PPh3)] (Au-N3), [W(η3-allyl)(N3)(bpy)(CO)2] (W-N3), and [Re(N3)(bpy)(CO)3] [bpy = 2,2'-bipyridine] (Re-N3). Increased steric bulk and/or preequilibria with high activation barriers prevent SPAAC iClick reactivity for the complexes [Ru(N3)(Tp)(PPh3)2] [Tp = tris(pyrazolyl)borate] (Ru-N3), [Pt(N3)(CH3)(PiPr3)2] [iPr = isopropyl] (Pt(II)-N3), and [Pt(N3)(CH3)3]4 ((PtN3)4). Based on these computational insights, the SPAAC iClick reactivity of [Pt(N3)(CH3)3(P(CH3)3)2] (Pt(IV)-N3) was successfully predicted.
Collapse
Affiliation(s)
- Yu-Hsuan Shen
- University of Florida, Department of Chemistry, Center for Catalysis, P.O. Box 117200, Gainesville, FL, 32611, USA.
| | - Alec M Esper
- University of Florida, Department of Chemistry, Center for Catalysis, P.O. Box 117200, Gainesville, FL, 32611, USA.
| | - Ion Ghiviriga
- University of Florida, Department of Chemistry, Center for Catalysis, P.O. Box 117200, Gainesville, FL, 32611, USA.
| | - Khalil A Abboud
- University of Florida, Department of Chemistry, Center for Catalysis, P.O. Box 117200, Gainesville, FL, 32611, USA.
| | - Kirk S Schanze
- University of Texas at San Antonio, Department of Chemistry, One UTSA Circle, San Antonio, TX 78249, USA
| | - Christian Ehm
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy.
| | - Adam S Veige
- University of Florida, Department of Chemistry, Center for Catalysis, P.O. Box 117200, Gainesville, FL, 32611, USA.
| |
Collapse
|
6
|
Amatore M, Parrain J, Commeiras L. Alkyne Surrogates in Cycloaddition Reactions for the Preparation of Molecules of Interest. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Muriel Amatore
- Aix Marseille Univ CNRS Centrale Marseille iSm2 Marseille France
| | - Jean‐Luc Parrain
- Aix Marseille Univ CNRS Centrale Marseille iSm2 Marseille France
| | | |
Collapse
|
7
|
Peng K, Moreth D, Schatzschneider U. C^N^N Coordination Accelerates the iClick Reaction of Square-Planar Palladium(II) and Platinum(II) Azido Complexes with Electron-Poor Alkynes and Enables Cycloaddition with Terminal Alkynes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Kun Peng
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Dominik Moreth
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Ulrich Schatzschneider
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| |
Collapse
|
8
|
Keim M, Konetzke K, Freytag A, Maas G. 3‐Trifloxy‐3‐(trifluoromethyl)prop‐2‐ene 1‐Iminium Salts as Precursors for Elusive 3‐(Trifluoromethyl)prop‐2‐yne 1‐Iminium Salts. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Michael Keim
- Institute of Organic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Katharina Konetzke
- Institute of Organic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Angelika Freytag
- Institute of Organic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Gerhard Maas
- Institute of Organic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| |
Collapse
|
9
|
Spectroscopic and antimicrobial activity of photoactivatable tricarbonyl Mn(I) terpyridine compounds. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119806] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
10
|
Peng K, Einsele R, Irmler P, Winter RF, Schatzschneider U. The iClick Reaction of a BODIPY Platinum(II) Azido Complex with Electron-Poor Alkynes Provides Triazolate Complexes with Good 1O2 Sensitization Efficiency. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00128] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kun Peng
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Richard Einsele
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Peter Irmler
- Fachbereich Chemie, Universität Konstanz, Universitätsstr. 10, 78457 Konstanz, Germany
| | - Rainer F. Winter
- Fachbereich Chemie, Universität Konstanz, Universitätsstr. 10, 78457 Konstanz, Germany
| | - Ulrich Schatzschneider
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| |
Collapse
|
11
|
Beto CC, Zeman CJ, Yang Y, Bullock JD, Holt ED, Kane AQ, Makal TA, Yang X, Ghiviriga I, Schanze KS, Veige AS. An Application Exploiting Aurophilic Bonding and iClick to Produce White Light Emitting Materials. Inorg Chem 2020; 59:1893-1904. [PMID: 31961144 DOI: 10.1021/acs.inorgchem.9b03195] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The paper focuses on exploiting aurophilic bonding to produce white light emitting materials. Inorganic Click (iClick) is employed to link two or four Au(I) metal ions through a triazolate bridge. Depending on the choice of phosphine ligand (PEt3 or PPh3), dinuclear Au2-FO or tetranuclear Au4-FO complexes can be controllably synthesized (FO = 2-(9,9-dioctylfluoreneyl-)). The iClick products Au2-FO and Au4-FO are characterized by combustion analysis and multinuclear NMR, TOCSY 1D, 1H-13C gHMBC, and 1H-13C gHSQC. In addition, the photophysical properties of Au2-FO and Au4-FO were examined in THF solution. Transient absorption spectroscopy was employed to elucidate the excited state features of the gold compounds. Solution processed OLEDs were fabricated and characterized, which gave white light electroluminescence with CIE coordinates (0.34, 0.36), as seen referenced to CIE standard illuminant D65 (0.31, 0.32). TDDFT computational analysis of Au2-FO and Au4-FO reveals the origin of light emission. In the case of Au4-FO, direct excitation leads to increased aurophilic bonding in the excited state, and as a result the emission profile is broadened to cover a larger region of the visible spectrum, thus giving white light emission. Designing molecules that can access or increase aurophilic bonding in the excited state provides another tool for fine-tuning the emission profiles of gold complexes.
Collapse
Affiliation(s)
- Christopher C Beto
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Charles J Zeman
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Yajing Yang
- Department of Chemistry , University of Texas at San Antonio , One UTSA Circle , San Antonio , Texas 78249 , United States
| | - James D Bullock
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Ethan D Holt
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Alexander Q Kane
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Trevor A Makal
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Xi Yang
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Ion Ghiviriga
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Kirk S Schanze
- Department of Chemistry , University of Texas at San Antonio , One UTSA Circle , San Antonio , Texas 78249 , United States
| | - Adam S Veige
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| |
Collapse
|
12
|
Mansour AM, Shehab OR, Radacki K. Role of Sulfonate Appendage in the Protein Binding Affinity of Half-Sandwich Ruthenium(II)(η6
-p
-Cym) Complexes. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901089] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Ahmed M. Mansour
- Chemistry Department; Faculty of Science; Cairo University; Gamma Street, Giza 12613 Cairo Egypt
| | - Ola R. Shehab
- Chemistry Department; Faculty of Science; Cairo University; Gamma Street, Giza 12613 Cairo Egypt
| | - Krzysztof Radacki
- Institut für Anorganische Chemie; Faculty of Science; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| |
Collapse
|
13
|
Peng K, Mawamba V, Schulz E, Löhr M, Hagemann C, Schatzschneider U. iClick Reactions of Square-Planar Palladium(II) and Platinum(II) Azido Complexes with Electron-Poor Alkynes: Metal-Dependent Preference for N1 vs N2 Triazolate Coordination and Kinetic Studies with 1H and 19F NMR Spectroscopy. Inorg Chem 2019; 58:11508-11521. [PMID: 31393709 DOI: 10.1021/acs.inorgchem.9b01304] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Two square-planar palladium(II) and platinum(II) azido complexes [M(N3)(L)] with L = N-phenyl-2-[1-(2-pyridinyl)ethylidene]hydrazine carbothioamide reacted with four different electron-poor alkynes R-C≡C-R' with R = R' = COOCH3, COOEt, COOCH2CH2OCH3 or R = CF3, R' = COOEt in a [3 + 2] cycloaddition "iClick" reaction. The resulting triazolate complexes [M(triazolateR,R')(L)] were isolated by simple precipitation and/or washing in high purity and good yield. Six out of the eight new compounds feature the triazolate ligand coordinated to the metal center via the N2 nitrogen atom, but fortuitous solubility properties allowed isolation of the N1 isomer in two cases from acetone. When the solvent was changed to DMSO, the N1 → N2 isomerization could be studied by NMR spectroscopy and took several days to complete. 19F NMR studies of the iClick reaction with F3C-C≡C-COOEt led to identification of a putative early linear intermediate in addition to the N1 and N2 isomers, however with the latter as the final product. Rate constants determined by 1H or 19F NMR spectroscopy increased in the order Pd > Pt and CF3/COOEt > COOR/COOR with R = CH3, Et, CH2CH2OCH3. The second-order rate constant k2 > 3.7 M-1 s-1 determined for the reaction of [Pd(N3)(L)] with F3C-C≡C-COOEt is the fastest observed for an iClick reaction so far and compares favorably with that of the most evolved strained alkynes reported for the SPAAC (strain-promoted azide-alkyne cycloaddition) to date. Selected title compounds were evaluated for their anticancer activity on the GaMG human glioblastoma brain cancer cell line and gave EC50 values in the low micromolar range (2-16 μM). The potency of the Pd(II) complexes increased with the chain length of the substituents in the 4- and 5-positions of the triazolate ligand.
Collapse
Affiliation(s)
- Kun Peng
- Institut für Anorganische Chemie , Julius-Maximilians-Universität Würzburg , Am Hubland , D-97074 Würzburg , Germany
| | - Viviane Mawamba
- Institut für Anorganische Chemie , Julius-Maximilians-Universität Würzburg , Am Hubland , D-97074 Würzburg , Germany
| | - Ellina Schulz
- Universitätsklinikum Würzburg , Neurochirurgische Klinik und Poliklinik, Tumorbiologisches Labor , Josef-Schneider-Straße 11 , D-97080 Würzburg , Germany
| | - Mario Löhr
- Universitätsklinikum Würzburg , Neurochirurgische Klinik und Poliklinik, Tumorbiologisches Labor , Josef-Schneider-Straße 11 , D-97080 Würzburg , Germany
| | - Carsten Hagemann
- Universitätsklinikum Würzburg , Neurochirurgische Klinik und Poliklinik, Tumorbiologisches Labor , Josef-Schneider-Straße 11 , D-97080 Würzburg , Germany
| | - Ulrich Schatzschneider
- Institut für Anorganische Chemie , Julius-Maximilians-Universität Würzburg , Am Hubland , D-97074 Würzburg , Germany
| |
Collapse
|
14
|
Peng K, Friedrich A, Schatzschneider U. 2,2':6',2''-Terpyridine switches from tridentate to monodentate coordination in a gold(iii) terpy complex upon reaction with sodium azide. Chem Commun (Camb) 2019; 55:8142-8145. [PMID: 31240290 DOI: 10.1039/c9cc04113c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Reaction of [AuCl(terpy-κ3-N1,1',1'')]Cl2 with an excess of sodium azide did not result in the expected exchange of the chlorido by an azido ligand to give [Au(N3)(terpy-κ3-N1,1',1'')]2+. Instead, X-ray structure analysis showed that the isolated product is [Au(N3)3(terpy-κ1-N1)], in which the terpyridine ligand is in a very rare monodentate coordination mode. This is also the dominant species in solution, together with a minor amount of [Au(N3)2(terpy-κ2-N1,1')]+. The stability of the tris(azido)gold(iii) moiety relative to other possible species was also confirmed by DFT calculations.
Collapse
Affiliation(s)
- Kun Peng
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany.
| | - Alexandra Friedrich
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany.
| | - Ulrich Schatzschneider
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany.
| |
Collapse
|
15
|
Ji X, Pan Z, Li C, Kang T, De La Cruz LKC, Yang L, Yuan Z, Ke B, Wang B. Esterase-Sensitive and pH-Controlled Carbon Monoxide Prodrugs for Treating Systemic Inflammation. J Med Chem 2019; 62:3163-3168. [PMID: 30816714 DOI: 10.1021/acs.jmedchem.9b00073] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A bottleneck for developing CO-based therapeutics is the lack of a safe and controllable delivery form. Herein, we describe efforts toward organic CO prodrugs with dual-responsive endogenous triggers. One representative CO prodrug showed significant anti-inflammatory effects both in vitro and in a LPS-simulated systemic inflammation model. These results firmly establish such CO prodrugs as either research tools or candidate compounds for the treatment of systemic inflammation or inflammation related organ injuries.
Collapse
Affiliation(s)
- Xingyue Ji
- Department of Chemistry and Center for Diagnostics and Therapeutics , Georgia State University , Atlanta , Georgia 30303 , United States.,Department of Medicinal Chemistry, College of Pharmaceutical Science , Soochow University , Suzhou , Jiangsu 215021 , China
| | - Zhixiang Pan
- Department of Chemistry and Center for Diagnostics and Therapeutics , Georgia State University , Atlanta , Georgia 30303 , United States
| | - Chunjie Li
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital , Sichuan University Chengdu , Sichuan 610041 , China
| | - Ting Kang
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital , Sichuan University Chengdu , Sichuan 610041 , China
| | - Ladie Kimberly C De La Cruz
- Department of Chemistry and Center for Diagnostics and Therapeutics , Georgia State University , Atlanta , Georgia 30303 , United States
| | - Lingyun Yang
- Department of Chemistry and Center for Diagnostics and Therapeutics , Georgia State University , Atlanta , Georgia 30303 , United States
| | - Zhengnan Yuan
- Department of Chemistry and Center for Diagnostics and Therapeutics , Georgia State University , Atlanta , Georgia 30303 , United States
| | - Bowen Ke
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital , Sichuan University Chengdu , Sichuan 610041 , China
| | - Binghe Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics , Georgia State University , Atlanta , Georgia 30303 , United States
| |
Collapse
|
16
|
Yao K, Bertran A, Morgan J, Hare SM, Rees NH, Kenwright AM, Edkins K, Bowen AM, Farrer NJ. A novel Pt(iv) mono azido mono triazolato complex evolves azidyl radicals following irradiation with visible light. Dalton Trans 2019; 48:6416-6420. [PMID: 31012460 PMCID: PMC6984332 DOI: 10.1039/c9dt01156k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A novel PtIV azido triazolato complex exists as an equilibrium between two species in d3-MeCN and evolves azide radicals (but not hydroxide radicals) when irradiated with visible light.
The platinum(iv) azido complex trans,trans,trans-[PtIV(N3)2(OH)2(py)2] (1) undergoes cycloaddition with 1,4-diphenyl-2-butyne-1,4-dione (2) under mild, catalyst-free conditions, affording a number of mono and bis click products. The major mono click product (3) exists in MeCN as an equilibrium mixture between two species; 3a and 3b rapidly interconvert through nucleophilic attack of the axial Pt–OH group at the adjacent Ph–CO group. The kinetic and thermodynamic parameters for this interconversion have been measured by selective saturation-transfer NMR spectroscopic experiments and are consistent with cyclisation at the Pt centre. Complex 3b was also characterised by X-ray crystallography. Visible light irradiation (440–480 nm) of 3 in d3-MeCN produces azidyl radicals (N3˙), as demonstrated by EPR spin-trapping with DMPO; no generation of hydroxyl radicals was observed. 1H–195Pt HMBC NMR confirmed that the photoproducts were PtIV rather than PtII species, and HPLC was consistent with these being [3–N3]+ species; no facile photoejection of the triazolato ligand was observed, consistent with MS/MS fragmentation of 3. When 3 was irradiated in the presence of 5′-GMP, no 5′-GMP photoproducts were observed, suggesting that complex 3 is likely to exhibit significantly simplified biological activity (release of azidyl radicals but not DNA binding) compared with complex 1.
Collapse
Affiliation(s)
- Kezi Yao
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Beto CC, Yang Y, Zeman CJ, Ghiviriga I, Schanze KS, Veige AS. Cu-Catalyzed Azide-Pt-Acetylide Cycloaddition: Progress toward a Conjugated Metallopolymer via iClick. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00737] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Christopher C. Beto
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Yajing Yang
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Charles J. Zeman
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Ion Ghiviriga
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Kirk S. Schanze
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249, United States
| | | |
Collapse
|
18
|
Mansour AM. Green-Light-Induced PhotoCORM: Lysozyme Binding Affinity towards MnI
and ReI
Carbonyl Complexes and Biological Activity Evaluation. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201801055] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ahmed M. Mansour
- Chemistry Department; Faculty of Science; Cairo University; Gamma Street 12613 Giza, Cairo Egypt
| |
Collapse
|
19
|
Farrer NJ, Sharma G, Sayers R, Shaili E, Sadler PJ. Platinum(iv) azido complexes undergo copper-free click reactions with alkynes. Dalton Trans 2018; 47:10553-10560. [PMID: 29480314 PMCID: PMC6083821 DOI: 10.1039/c7dt04183g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 01/05/2018] [Indexed: 01/09/2023]
Abstract
We report our investigations into the first examples of copper-free 1,3-dipolar cycloaddition (click) reactions of electrophiles with a PtIV azido complex. The Pt-IV azido complex trans, trans, trans-[PtIV(py)2(N3)2(OH)2] (1) was reactive towards dimethyl acetylenedicarboxylate (DMAD) (2), diethyl acetylenedicarboxylate DEACD (3), N-[(1R,8S,9s)-bicyclo[6.1.0]non-4-yn-9-ylmethyloxycarbonyl]-1,8-diamino-3,6-dioxaoctane (BCN) (11) and dibenzocyclooctyne-amine (DBCO) (12) resulting in formation of the corresponding mono (a) and bis-substituted (b) complexes. Complexes of 2 undergo further reactions between the Pt centre and the carbonyl group to form 2a' and 2b'. This is not seen for the products of the corresponding PtII azido complex trans-[Pt(py)2(N3)2] with acetylene 2. Novel complexes 2a', 2b', 11a and 11b have been characterised by multinuclear NMR, IR and UV-vis spectroscopy and ESI-MS. These reactions represent new synthetic routes to novel Pt(iv) complexes.
Collapse
Affiliation(s)
- Nicola J. Farrer
- Chemistry Research Laboratory
, University of Oxford
,
12 Mansfield Road
, Oxford
, OX1 3TA
, UK
.
; Tel: +44 (0)1865 285155
| | - Gitanjali Sharma
- Chemistry Research Laboratory
, University of Oxford
,
12 Mansfield Road
, Oxford
, OX1 3TA
, UK
.
; Tel: +44 (0)1865 285155
| | - Rachel Sayers
- Chemistry Research Laboratory
, University of Oxford
,
12 Mansfield Road
, Oxford
, OX1 3TA
, UK
.
; Tel: +44 (0)1865 285155
| | - Evyenia Shaili
- Department of Chemistry
, University of Warwick
,
Gibbet Hill Road
, Coventry
, CV4 7AL
, UK
| | - Peter J. Sadler
- Department of Chemistry
, University of Warwick
,
Gibbet Hill Road
, Coventry
, CV4 7AL
, UK
| |
Collapse
|
20
|
|
21
|
Huxley MT, Burgun A, Ghodrati H, Coghlan CJ, Lemieux A, Champness NR, Huang DM, Doonan CJ, Sumby CJ. Protecting-Group-Free Site-Selective Reactions in a Metal-Organic Framework Reaction Vessel. J Am Chem Soc 2018; 140:6416-6425. [PMID: 29699391 DOI: 10.1021/jacs.8b02896] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Site-selective organic transformations are commonly required in the synthesis of complex molecules. By employing a bespoke metal-organic framework (MOF, 1·[Mn(CO)3N3]), in which coordinated azide anions are precisely positioned within 1D channels, we present a strategy for the site-selective transformation of dialkynes into alkyne-functionalized triazoles. As an illustration of this approach, 1,7-octadiyne-3,6-dione stoichiometrically furnishes the mono-"click" product N-methyl-4-hex-5'-ynl-1',4'-dione-1,2,3-triazole with only trace bis-triazole side-product. Stepwise insights into conversions of the MOF reaction vessel were obtained by X-ray crystallography, demonstrating that the reactive sites are "isolated" from one another. Single-crystal to single-crystal transformations of the Mn(I)-metalated material 1·[Mn(CO)3(H2O)]Br to the corresponding azide species 1·[Mn(CO)3N3] with sodium azide, followed by a series of [3+2] azide-alkyne cycloaddition reactions, are reported. The final liberation of the "click" products from the porous material is achieved by N-alkylation with MeBr, which regenerates starting MOF 1·[Mn(CO)3(H2O)]Br and releases the organic products, as characterized by NMR spectroscopy and mass spectrometry. Once the dialkyne length exceeds the azide separation, site selectivity is lost, confirming the critical importance of isolated azide moieties for this strategy. We postulate that carefully designed MOFs can act as physical protecting groups to facilitate other site-selective and chemoselective transformations.
Collapse
Affiliation(s)
- Michael T Huxley
- Department of Chemistry and Centre for Advanced Nanomaterials , The University of Adelaide , Adelaide , South Australia 5005 , Australia
| | - Alexandre Burgun
- Department of Chemistry and Centre for Advanced Nanomaterials , The University of Adelaide , Adelaide , South Australia 5005 , Australia
| | - Hanieh Ghodrati
- Department of Chemistry and Centre for Advanced Nanomaterials , The University of Adelaide , Adelaide , South Australia 5005 , Australia
| | - Campbell J Coghlan
- Department of Chemistry and Centre for Advanced Nanomaterials , The University of Adelaide , Adelaide , South Australia 5005 , Australia
| | - Anthony Lemieux
- Department of Chemistry and Centre for Advanced Nanomaterials , The University of Adelaide , Adelaide , South Australia 5005 , Australia
| | - Neil R Champness
- School of Chemistry , University of Nottingham , Nottingham NG7 2RD , United Kingdom
| | - David M Huang
- Department of Chemistry and Centre for Advanced Nanomaterials , The University of Adelaide , Adelaide , South Australia 5005 , Australia
| | - Christian J Doonan
- Department of Chemistry and Centre for Advanced Nanomaterials , The University of Adelaide , Adelaide , South Australia 5005 , Australia
| | - Christopher J Sumby
- Department of Chemistry and Centre for Advanced Nanomaterials , The University of Adelaide , Adelaide , South Australia 5005 , Australia
| |
Collapse
|
22
|
Henry L, Delsuc N, Laugel C, Lambert F, Sandt C, Hostachy S, Bernard AS, Bertrand HC, Grimaud L, Baillet-Guffroy A, Policar C. Labeling of Hyaluronic Acids with a Rhenium-tricarbonyl Tag and Percutaneous Penetration Studied by Multimodal Imaging. Bioconjug Chem 2018; 29:987-991. [PMID: 29360339 DOI: 10.1021/acs.bioconjchem.7b00825] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Hyaluronic acids were labeled with a rhenium-tricarbonyl used as single core multimodal probe for imaging and their penetration into human skin biopsies was studied using IR microscopy and fluorescence imaging (labeled SCoMPI). The penetration was shown to be dependent on the molecular weight of the molecule and limited to the upper layer of the skin.
Collapse
Affiliation(s)
- Lucas Henry
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Nicolas Delsuc
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Cécile Laugel
- Laboratory of Analytical Chemistry, Lip(Sys)2, (EA 7357), Faculty of Pharmacy, Paris-Sud , University of Paris-Saclay , 5 Rue Jean-Baptiste Clément , 92296 Chatenay-Malabry , France
| | - François Lambert
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Christophe Sandt
- SMIS beamline , Synchrotron SOLEIL Saint-Aubin , 91192 Gif-sur-Yvette Cedex , France
| | - Sarah Hostachy
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Anne-Sophie Bernard
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Hélène C Bertrand
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Laurence Grimaud
- PASTEUR, Département de chimie, École normale supérieure, PSL Research University, Sorbonne Universités, UPMC Univ. Paris 06, CNRS , 75005 Paris , France
| | - Arlette Baillet-Guffroy
- Laboratory of Analytical Chemistry, Lip(Sys)2, (EA 7357), Faculty of Pharmacy, Paris-Sud , University of Paris-Saclay , 5 Rue Jean-Baptiste Clément , 92296 Chatenay-Malabry , France
| | - Clotilde Policar
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| |
Collapse
|
23
|
Schmid P, Maier M, Pfeiffer H, Belz A, Henry L, Friedrich A, Schönfeld F, Edkins K, Schatzschneider U. Catalyst-free room-temperature iClick reaction of molybdenum(ii) and tungsten(ii) azide complexes with electron-poor alkynes: structural preferences and kinetic studies. Dalton Trans 2018; 46:13386-13396. [PMID: 28933494 DOI: 10.1039/c7dt03096g] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Two isostructural and isoelectronic group VI azide complexes of the general formula [M(η3-allyl)(N3)(bpy)(CO)2] with M = Mo, W and bpy = 2,2'-bipyridine were prepared and fully characterized, including X-ray structure analysis. Both reacted smoothly with electron-poor alkynes such as dimethyl acetylenedicarboxylate (DMAD) and 4,4,4-trifluoro-2-butynoic acid ethyl ester in a catalyst-free room-temperature iClick [3 + 2] cycloaddition reaction. Reaction with phenyl(trifluoromethyl)acetylene, on the other hand, did not lead to any product formation. X-ray structures of the four triazolate complexes isolated showed the monodentate ligand to be N2-coordinated in all cases, which requires a 1,2-shift of the nitrogen from the terminal azide to the triazolate cycloaddition product. On the other hand, a 19F NMR spectroscopic study of the reaction of the fluorinated alkyne with the tungsten azide complex at 27 °C allowed detection of the N1-coordinated intermediate. With this method, the second-order rate constant was determined as (7.3 ± 0.1) × 10-2 M-1 s-1, which compares favorably with that of first-generation compounds such as difluorocyclooctyne (DIFO) used in the strain-promoted azide-alkyne cycloaddition (SPAAC). In contrast, the reaction of the molybdenum analogue was too fast to be studied with NMR methods. Alternatively, solution IR studies revealed pseudo-first order rate constants of 0.4 to 6.5 × 10-3 s-1, which increased in the order of Mo > W and F3C-C[triple bond, length as m-dash]C-COOEt > DMAD.
Collapse
Affiliation(s)
- Paul Schmid
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany.
| | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Kohn DR, Gawel P, Xiong Y, Christensen KE, Anderson HL. Synthesis of Polyynes Using Dicobalt Masking Groups. J Org Chem 2018; 83:2077-2086. [DOI: 10.1021/acs.joc.7b03015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel R. Kohn
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - Przemyslaw Gawel
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - Yaoyao Xiong
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - Kirsten E. Christensen
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - Harry L. Anderson
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, United Kingdom
| |
Collapse
|
25
|
Mansour AM, Friedrich A. IClick cycloaddition reaction of light-triggered manganese(i) carbonyl complexes. NEW J CHEM 2018. [DOI: 10.1039/c8nj01838c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
For a binuclear blue-light-induced CO-releasing manganese(i) tricarbonyl complex bearing bidentate ligand, the effect of the ancillary ligand on the dark stability and photolysis process was studied.
Collapse
Affiliation(s)
- Ahmed M. Mansour
- Department of Chemistry
- Faculty of Science
- Cairo University
- Cairo 12613
- Egypt
| | - Alexandra Friedrich
- Institut für Anorganische Chemie
- Julius-Maximilians-Universität Würzburg
- D-97074 Würzburg
- Germany
| |
Collapse
|
26
|
Waag-Hiersch L, Mößeler J, Schatzschneider U. Electronic Influences on the Stability and Kinetics of Cp* Rhodium(III) Azide Complexes in the iClick Reaction with Electron-Poor Alkynes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700199] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Luisa Waag-Hiersch
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Jan Mößeler
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Ulrich Schatzschneider
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| |
Collapse
|
27
|
Yang X, VenkatRamani S, Beto CC, Del Castillo TJ, Ghiviriga I, Abboud KA, Veige AS. Single versus Double Cu(I) Catalyzed [3 + 2] Azide/Platinum Diacetylide Cycloaddition Reactions. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Xi Yang
- Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Sudarsan VenkatRamani
- Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Christopher C. Beto
- Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Trevor J. Del Castillo
- Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Ion Ghiviriga
- Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Khalil A. Abboud
- Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Adam S. Veige
- Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| |
Collapse
|
28
|
Ji X, Ji K, Chittavong V, Yu B, Pan Z, Wang B. An esterase-activated click and release approach to metal-free CO-prodrugs. Chem Commun (Camb) 2017; 53:8296-8299. [DOI: 10.1039/c7cc03832a] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal-free CO prodrugs with a biological trigger and tunable release rate are described herein for the first time.
Collapse
Affiliation(s)
- Xingyue Ji
- Department of Chemistry and Center for Diagnostics and Therapeutics
- Georgia State University Atlanta
- Georgia 30303
- USA
| | - Kaili Ji
- Department of Chemistry and Center for Diagnostics and Therapeutics
- Georgia State University Atlanta
- Georgia 30303
- USA
| | - Vayou Chittavong
- Department of Chemistry and Center for Diagnostics and Therapeutics
- Georgia State University Atlanta
- Georgia 30303
- USA
| | - Bingchen Yu
- Department of Chemistry and Center for Diagnostics and Therapeutics
- Georgia State University Atlanta
- Georgia 30303
- USA
| | - Zhixiang Pan
- Department of Chemistry and Center for Diagnostics and Therapeutics
- Georgia State University Atlanta
- Georgia 30303
- USA
| | - Binghe Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics
- Georgia State University Atlanta
- Georgia 30303
- USA
| |
Collapse
|
29
|
Ji X, Zhou C, Ji K, Aghoghovbia RE, Pan Z, Chittavong V, Ke B, Wang B. Click and Release: A Chemical Strategy toward Developing Gasotransmitter Prodrugs by Using an Intramolecular Diels-Alder Reaction. Angew Chem Int Ed Engl 2016; 55:15846-15851. [PMID: 27879021 DOI: 10.1002/anie.201608732] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 10/03/2016] [Indexed: 02/05/2023]
Abstract
Prodrug strategies have been proven to be a very effective way of addressing delivery problems. Much of the chemistry in prodrug development relies on the ability to mask an appropriate functional group, which can be removed under appropriate conditions. However, developing organic prodrugs of gasotransmitters represent unique challenges. This is especially true with carbon monoxide, which does not have an easy "handle" for bioreversible derivatization. By taking advantage of an intramolecular Diels-Alder reaction, we have developed a prodrug strategy for preparations of organic CO prodrugs that are stable during synthesis and storage, and yet readily release CO with tunable release rates under near physiological conditions. The effectiveness of the CO prodrug system in delivering a sufficient quantity of CO for possible therapeutic applications has been studied using a cell culture anti-inflammatory assay and a colitis animal model. These studies fully demonstrate the proof of concept, and lay a strong foundation for further medicinal chemistry work in developing organic CO prodrugs.
Collapse
Affiliation(s)
- Xingyue Ji
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, 30303, USA
| | - Cheng Zhou
- Laboratory of Anesthesiology & Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Kaili Ji
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, 30303, USA
| | - Robert E Aghoghovbia
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, 30303, USA
| | - Zhixiang Pan
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, 30303, USA
| | - Vayou Chittavong
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, 30303, USA
| | - Bowen Ke
- Laboratory of Anesthesiology & Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Binghe Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, 30303, USA
| |
Collapse
|
30
|
Ji X, Zhou C, Ji K, Aghoghovbia RE, Pan Z, Chittavong V, Ke B, Wang B. Click and Release: A Chemical Strategy toward Developing Gasotransmitter Prodrugs by Using an Intramolecular Diels-Alder Reaction. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608732] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xingyue Ji
- Department of Chemistry and Center for Diagnostics and Therapeutics; Georgia State University; Atlanta GA 30303 USA
| | - Cheng Zhou
- Laboratory of Anesthesiology & Critical Care Medicine; Translational Neuroscience Center; West China Hospital; Sichuan University; Chengdu Sichuan 610041 China
| | - Kaili Ji
- Department of Chemistry and Center for Diagnostics and Therapeutics; Georgia State University; Atlanta GA 30303 USA
| | - Robert E. Aghoghovbia
- Department of Chemistry and Center for Diagnostics and Therapeutics; Georgia State University; Atlanta GA 30303 USA
| | - Zhixiang Pan
- Department of Chemistry and Center for Diagnostics and Therapeutics; Georgia State University; Atlanta GA 30303 USA
| | - Vayou Chittavong
- Department of Chemistry and Center for Diagnostics and Therapeutics; Georgia State University; Atlanta GA 30303 USA
| | - Bowen Ke
- Laboratory of Anesthesiology & Critical Care Medicine; Translational Neuroscience Center; West China Hospital; Sichuan University; Chengdu Sichuan 610041 China
| | - Binghe Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics; Georgia State University; Atlanta GA 30303 USA
| |
Collapse
|
31
|
Kumar J, Pratibha, Verma S. Crystallographic signatures of silver-purine frameworks with an azide functionality. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.03.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
32
|
|
33
|
Simpson PV, Skelton BW, Raiteri P, Massi M. Photophysical and photochemical studies of tricarbonyl rhenium(i) N-heterocyclic carbene complexes containing azide and triazolate ligands. NEW J CHEM 2016. [DOI: 10.1039/c5nj03301b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rhenium NHC complexes bound to azide anions readily react with alkynes to form the corresponding triazolate complexes, a new class of photochemically active species.
Collapse
Affiliation(s)
- Peter V. Simpson
- Nanochemistry Research Institute – Department of Chemistry
- Curtin University
- Bentley 6102 WA
- Australia
| | - Brian W. Skelton
- Centre for Microscopy
- Characterisation and Analysis
- University of Western Australia
- Crawley 6009 WA
- Australia
| | - Paolo Raiteri
- Nanochemistry Research Institute – Department of Chemistry
- Curtin University
- Bentley 6102 WA
- Australia
| | - Massimiliano Massi
- Nanochemistry Research Institute – Department of Chemistry
- Curtin University
- Bentley 6102 WA
- Australia
| |
Collapse
|
34
|
Bruce MI, Burgun A, George J, Nicholson BK, Parker CR, Skelton BW, Scoleri N, Sumby CJ, Zaitseva NN. Some reactions of azides with diynyl-bis(phosphine)ruthenium-cyclopentadienyl complexes. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.08.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
35
|
Bustelo E, Gushchin AL, Fernández-Trujillo MJ, Basallote MG, Algarra AG. On the Critical Effect of the Metal (Mo vs. W) on the [3+2] Cycloaddition Reaction of M3 S4 Clusters with Alkynes: Insights from Experiment and Theory. Chemistry 2015; 21:14823-33. [PMID: 26383190 DOI: 10.1002/chem.201502644] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Indexed: 01/19/2023]
Abstract
Whereas the cluster [Mo3 S4 (acac)3 (py)3 ](+) ([1](+) , acac=acetylacetonate, py=pyridine) reacts with a variety of alkynes, the cluster [W3 S4 (acac)3 (py)3 ](+) ([2](+) ) remains unaffected under the same conditions. The reactions of cluster [1](+) show polyphasic kinetics, and in all cases clusters bearing a bridging dithiolene moiety are formed in the first step through the concerted [3+2] cycloaddition between the C≡C atoms of the alkyne and a Mo(μ-S)2 moiety of the cluster. A computational study has been conducted to analyze the effect of the metal on these concerted [3+2] cycloaddition reactions. The calculations suggest that the reactions of cluster [2](+) with alkynes feature ΔG(≠) values only slightly larger than its molybdenum analogue, however, the differences in the reaction free energies between both metal clusters and the same alkyne reach up to approximately 10 kcal mol(-1) , therefore indicating that the differences in the reactivity are essentially thermodynamic. The activation strain model (ASM) has been used to get more insights into the critical effect of the metal center in these cycloadditions, and the results reveal that the change in reactivity is entirely explained on the basis of the differences in the interaction energies Eint between the cluster and the alkyne. Further decomposition of the Eint values through the localized molecular orbital-energy decomposition analysis (LMO-EDA) indicates that substitution of the Mo atoms in cluster [1](+) by W induces changes in the electronic structure of the cluster that result in weaker intra- and inter-fragment orbital interactions.
Collapse
Affiliation(s)
- Emilio Bustelo
- Departmento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Campus Universitario de Puerto Real, Universidad de Cádiz, 11510 Puerto Real, Cádiz (Spain)
| | - Artem L Gushchin
- Nikolaev Institute of Inorganic Chemistry, Russian Academy of Sciences, Novosibirsk State University, 630090 Novosibirsk (Russia)
| | - M Jesús Fernández-Trujillo
- Departmento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Campus Universitario de Puerto Real, Universidad de Cádiz, 11510 Puerto Real, Cádiz (Spain)
| | - Manuel G Basallote
- Departmento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Campus Universitario de Puerto Real, Universidad de Cádiz, 11510 Puerto Real, Cádiz (Spain).
| | - Andrés G Algarra
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691 Stockholm (Sweden).
| |
Collapse
|
36
|
Fehlhammer WP, Beck W. Azide Chemistry - An Inorganic Perspective, Part II[‡][3+2]-Cycloaddition Reactions of Metal Azides and Related Systems. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500165] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
37
|
Yang X, Wang S, Ghiviriga I, Abboud KA, Veige AS. Organogold oligomers: exploiting iClick and aurophilic cluster formation to prepare solution stable Au4 repeating units. Dalton Trans 2015; 44:11437-43. [DOI: 10.1039/c5dt00282f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cluster formation via multiple gold–gold bonds provides sufficient thermodynamic driving force to overcome entropic penalties to link multiple units and create solution stable organogold oligomers.
Collapse
Affiliation(s)
- Xi Yang
- University of Florida
- Department of Chemistry
- Center for Catalysis
- Gainesville
- USA
| | - Shanshan Wang
- University of Florida
- Department of Chemistry
- Center for Catalysis
- Gainesville
- USA
| | - Ion Ghiviriga
- University of Florida
- Department of Chemistry
- Center for Catalysis
- Gainesville
- USA
| | - Khalil A. Abboud
- University of Florida
- Department of Chemistry
- Center for Catalysis
- Gainesville
- USA
| | - Adam S. Veige
- University of Florida
- Department of Chemistry
- Center for Catalysis
- Gainesville
- USA
| |
Collapse
|
38
|
Powers AR, Ghiviriga I, Abboud KA, Veige AS. Au-iClick mirrors the mechanism of copper catalyzed azide–alkyne cycloaddition (CuAAC). Dalton Trans 2015. [DOI: 10.1039/c5dt02405f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Isolated digold-triazolate products and first-order kinetic profiles for Au–acetylide/azide reactants in iClick provide compelling support for two copper ions in CuAAC.
Collapse
Affiliation(s)
- Andrew R. Powers
- Department of Chemistry
- Center for Catalysis
- University of Florida
- Gainesville
- USA
| | - Ion Ghiviriga
- Department of Chemistry
- Center for Catalysis
- University of Florida
- Gainesville
- USA
| | - Khalil A. Abboud
- Department of Chemistry
- Center for Catalysis
- University of Florida
- Gainesville
- USA
| | - Adam S. Veige
- Department of Chemistry
- Center for Catalysis
- University of Florida
- Gainesville
- USA
| |
Collapse
|