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Affiliation(s)
| | - Hugues Miel
- Almac Discovery Ltd. , David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
| | | | | | | | - M Anthony McKervey
- Almac Sciences Ltd. , Almac House, 20 Seagoe Industrial Estate, Craigavon BT63 5QD, United Kingdom
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Darkins P, Gilmore BF, Hawthorne SJ, Healy A, Moncrieff H, McCarthy N, McKervey MA, Brömme D, Pagano M, Walker B. Synthesis of Peptidyl Ene Diones: Selective Inactivators of the Cysteine Proteinases. Chem Biol Drug Des 2007; 69:170-9. [PMID: 17441903 DOI: 10.1111/j.1747-0285.2007.00490.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of synthetic peptides in which the C-terminal carboxyl grouping (-CO(2)H) of each has been chemically converted into a variety of ene dione derivatives (-CO-CH=CH-CO-X; X = -H, -Me, -OBut, -OEt, -OMe, -CO-OMe), have been prepared and tested as inactivators against typical members of the serine and cysteine protease families. For example, the sequences Cbz-Pro-Phe-CH=CH-CO-OEt (I) which fulfils the known primary and secondary specificity requirements of the serine protease chymotrypsin, and Cbz-Phe-Ala-CH=CH-CO-OEt (II) which represents a general recognition sequence for cysteine proteases such as cathepsins B, L and S, have been tested as putative irreversible inactivators of their respective target proteases. It was found that, whereas II, for example, functioned as a time-dependent, irreversible inactivator of each of the cysteine proteases, I behaved only as a modest competitive reversible inhibitor of chymotrypsin. Within the simple ester sequences Cbz-Phe-Ala-CH=CH-CO-R, the rank order of inhibitor effectiveness decreases in the order R = -OMe > -OEt >> -OBut. It was also found that the presence of both an unsaturated double bond and an ester (or alpha-keto ester) moiety were indispensable for obtaining irreversible inactivators. Of the irreversible inactivators synthesized, Cbz-Phe-Ala-CH=CH-CO-CO-OEt (which contains a highly electrophilic alpha-keto ester grouping) was found to be the most effective exhibiting, for example, second-order rate constants of approximately 1.7 x 10(6)M(-1)min(-1) and approximately 4.9 x 10(4)M(-1)min(-1) against recombinant human cathepsin S and human spleenic cathepsin B, respectively. This initial study thus holds out the promise that this class of inactivator may well be specific for the cysteine protease subclass.
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Affiliation(s)
- Paul Darkins
- School of Chemistry, Queen's University of Belfast, David Keir Building, Belfast BT9 5AG, UK
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3
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Arnaud-neu F, Barrett G, Ferguson G, Gallagher JF, McKervey MA, Moran M, Schwing-Weill MJ, Schwinte P. A supramolecular assembly of a multifunctional calix[4]arene with alkali and alkaline earth cations in solution and in the solid state. Supramol Chem 2006. [DOI: 10.1080/10610279608027519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Francoise Arnaud-neu
- a European Higher Institute of Chemistry of Strasbourg , URA 405 au CNRS, EHICS, 1, rue Blaise Pascal, F67000, Strasbourg, France
| | - Geraldine Barrett
- c School of Chemistry , The Queen's University , Belfast, BT9 5AG, N. Ireland
| | - George Ferguson
- b Department of Chemistry and Biochemistry , University of Guelph , Ontario, Canada , NIG 2W1
| | - John F. Gallagher
- b Department of Chemistry and Biochemistry , University of Guelph , Ontario, Canada , NIG 2W1
| | - M. Anthony McKervey
- c School of Chemistry , The Queen's University , Belfast, BT9 5AG, N. Ireland
| | - Mary Moran
- c School of Chemistry , The Queen's University , Belfast, BT9 5AG, N. Ireland
| | - Marie-Jose Schwing-Weill
- a European Higher Institute of Chemistry of Strasbourg , URA 405 au CNRS, EHICS, 1, rue Blaise Pascal, F67000, Strasbourg, France
| | - Pascale Schwinte
- a European Higher Institute of Chemistry of Strasbourg , URA 405 au CNRS, EHICS, 1, rue Blaise Pascal, F67000, Strasbourg, France
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4
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Ferguson G, Gallagher JF, Li Y, McKervey MA, Madigan E, Malone JF, Moran MB, Walker A. Crystal and molecular structure of 1,3-(dis/tal) derivatives of p-tert-butyl calix[4]arene. Evidence for conformational control and self-inclusion involving weak C-H … π interactions. Supramol Chem 2006. [DOI: 10.1080/10610279608027520] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- George Ferguson
- a Department of Chemistry and Biochemistry , University of Guelph , Guelph, Ontario, Canada , N1G 2W1
| | - John F. Gallagher
- a Department of Chemistry and Biochemistry , University of Guelph , Guelph, Ontario, Canada , N1G 2W1
| | - Yiwei Li
- a Department of Chemistry and Biochemistry , University of Guelph , Guelph, Ontario, Canada , N1G 2W1
| | - M. Anthony McKervey
- b School of Chemistry , The Queen's University , Belfast, BT9 5AG, N. Ireland
| | - Evelyn Madigan
- b School of Chemistry , The Queen's University , Belfast, BT9 5AG, N. Ireland
| | - John F. Malone
- b School of Chemistry , The Queen's University , Belfast, BT9 5AG, N. Ireland
| | - Mary B. Moran
- b School of Chemistry , The Queen's University , Belfast, BT9 5AG, N. Ireland
| | - Andrew Walker
- b School of Chemistry , The Queen's University , Belfast, BT9 5AG, N. Ireland
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McKervey MA, Millership JS, Russell JA, Nieuwenhuyzen M, Pitarch M. Rigidification of the Cone Conformation of p-tert-Butylcalix[4]arene with Carbamate Groups on the Lower Rim. Supramol Chem 2006. [DOI: 10.1080/10610279808034975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- M. Anthony McKervey
- a School of Chemistry, The Queen's University of Belfast , Belfast, BT9 5AG, Northern Ireland
| | - Jeffrey S. Millership
- b School of Pharmacy, The Queen's University of Belfast , Belfast, BT9 7BL, Northern Ireland
| | - Julie A. Russell
- a School of Chemistry, The Queen's University of Belfast , Belfast, BT9 5AG, Northern Ireland
| | - Mark Nieuwenhuyzen
- a School of Chemistry, The Queen's University of Belfast , Belfast, BT9 5AG, Northern Ireland
| | - Miguel Pitarch
- a School of Chemistry, The Queen's University of Belfast , Belfast, BT9 5AG, Northern Ireland
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Arnaud-neu F, Böhmer V, Guerra L, McKervey MA, Paulus EF, Rodriguez A, Schwing-weill MJ, Tabatabai M, Vogt W. Metal ion complexation by tetraester derivatives of bridged calix [4] arenes. J PHYS ORG CHEM 2004. [DOI: 10.1002/poc.610050809] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Maier WF, Grubmüller P, Thies I, Stein PM, McKervey MA, von Ragué Schleyer P. Direct Removal of Functional Groups by Catalytic Hydrogenolysis. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/anie.197909391] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Pailleret A, Arrigan DWM, Browne JK, Anthony McKervey M. Synthesis and electrochemical study of a tetra(ester thiophene)calix[4]arene: ionic recognition and electropolymerisation behaviour. ACTA ACUST UNITED AC 2002. [DOI: 10.1039/b204155c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Clark T, Knox TM, Mackle H, McKervey MA, Rooney JJ. Calorimetric evaluation of enthalpies of formation of some bridged-ring hydrocarbons. Comparison with data from empirical force field calculations. J Am Chem Soc 2002. [DOI: 10.1021/ja00846a055] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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McKervey MA, Seward EM, Ferguson G, Ruhl BL. Molecular receptors. Synthesis and x-ray crystal structure of a calix[4] arene tetracarbonate-acetonitrile (1:1) clathrate. J Org Chem 2002. [DOI: 10.1021/jo00369a005] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Clark T, Knox TM, McKervey MA, Mackle H, Rooney JJ. Thermochemistry of bridged-ring substances. Enthalpies of formation of some diamondoid hydrocarbons and of perhydroquinacene. Comparisons with data from empirical force field calculations. J Am Chem Soc 2002. [DOI: 10.1021/ja00503a028] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Burns W, McKervey MA, Mitchell TRB, Rooney JJ. A new approach to the construction of diamondoid hydrocarbons. Synthesis of anti-tetramantane. J Am Chem Soc 2002. [DOI: 10.1021/ja00471a041] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Browne CM, Ferguson G, McKervey MA, Mulholland DL, O'Connor T, Parvez M. Molecular receptors. Synthesis, x-ray crystal structures, and chemical properties of crown ethers bearing an intraannular phenolic group. J Am Chem Soc 2002. [DOI: 10.1021/ja00295a024] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Boehmer V, Vogt W, Goldmann H, McKervey MA, Owens M, Cremin S, Collins EM. Control of alkali cation complexation in bridged calix[4]arene esters induced by small conformational changes. J Org Chem 2002. [DOI: 10.1021/jo00296a003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Arnaud-Neu F, Barrett G, Harris SJ, Owens M, McKervey MA, Schwing-Weill MJ, Schwinte P. Cation complexation by chemically modified calixarenes. 5. Protonation constants for calixarene carboxylates and stability constants of their alkali and alkaline-earth complexes. Inorg Chem 2002. [DOI: 10.1021/ic00064a013] [Citation(s) in RCA: 98] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Arnaud-Neu F, Collins EM, Deasy M, Ferguson G, Harris SJ, Kaitner B, Lough AJ, McKervey MA, Marques E. Synthesis, x-ray crystal structures, and cation-binding properties of alkyl calixaryl esters and ketones, a new family of macrocyclic molecular receptors. J Am Chem Soc 2002. [DOI: 10.1021/ja00205a018] [Citation(s) in RCA: 430] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Lynam C, Jennings K, Nolan K, Kane P, McKervey MA, Diamond D. Tuning and enhancing enantioselective quenching of calixarene hosts by chiral guest amines. Anal Chem 2002; 74:59-66. [PMID: 11795818 DOI: 10.1021/ac010153k] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of a propranolol amide derivative of p-allylcalix[4]arene is described, which has been designed to behave as a molecular sensor capable of distinguishing chiral amines on the basis of their shape and chirality. This molecule can discriminate between the enantiomers of phenylalaninol through the quenching of the fluorescence emission in methanol in contrast to an (S)-dinaphthylprolinol calix[4]arene derivative, which can discriminate between the enantiomers of phenylglycinol, but not phenylalaninol. The separation between the naphthyl fluorophores and the hydrogen-bonding sites within the chiral cavity can be tuned to recognize guest amines with similar separation between aryl groups and hydrogen-bonding sites. The formation of metal ion complexes of the p-allylcalix[4]arene propranolol amide derivative is shown to induce a more regular and rigid cone conformation in the calix[4]arene macrocycle, which generates a significant enhancement in the observed enantiomeric discrimination.
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Affiliation(s)
- Carol Lynam
- National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Ireland
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22
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Arnaud-Neu F, Barboso S, Fanni S, Schwing-Weill MJ, McKee V, McKervey MA. Alkali and Alkaline Earth Ion Complexation and X-ray Crystal Structure of p-tert-Butylcalix[4]arene Tetraethylamide. Ind Eng Chem Res 2000. [DOI: 10.1021/ie000093t] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Walker B, Darkins PA, McKervey MA, Moncrieff HM, Lynas JF. Potent new leucine aminopeptidase inhibitor of novel structure synthesised by a modified Wadsworth-Emmons (Horner) Wittig procedure. Bioorg Med Chem Lett 2000; 10:1481-2. [PMID: 10888337 DOI: 10.1016/s0960-894x(00)00261-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The use of a leucine-derived alpha-keto-beta-aldehyde (glyoxal) as a substrate in the Horner-Emmons (Wadsworth) Wittig reaction has enabled the synthesis of (Z)-7-methyl-5(S)-amino-4-oxo-methyl-oct-2-eneoate. This novel compound is a potent inhibitor (Ki = 76 nM) of leucine aminopeptidase and provides an interesting new template for the development of metallopeptidase inhibitors.
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Affiliation(s)
- B Walker
- Division of Biomedicinal Chemistry, School of Pharmacy, The Queen's University of Belfast, Medical Biology Centre, UK.
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24
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Groarke M, Hartzoulakis B, McKervey MA, Walker B, Williams CH. Synthesis of ketomethylene amino pseudopeptide analogues via reductive amination of glyoxals derived from alpha-amino acids. Bioorg Med Chem Lett 2000; 10:153-5. [PMID: 10673100 DOI: 10.1016/s0960-894x(99)00637-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The reductive amination of an amino acid derived glyoxal, with the free amino group of a protected amino acid or oligopeptide fragment, has been developed as a simple and efficient method for the preparation of ketomethylene amino pseudo-oligopeptide isosteres Aa psi(COCH2NH)Aa. Trichlorosilane-DMF is the reagent of choice for the reduction.
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Affiliation(s)
- M Groarke
- School of Chemistry, The Queen's University, Belfast, UK
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25
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Darkins P, Groarke M, McKervey MA, Moncrieff HM, McCarthy N, Nieuwenhuyzen M. Enantiopure N-protected α-amino glyoxals 1. Synthesis from α-amino acids and some condensation reactions with amines. ACTA ACUST UNITED AC 2000. [DOI: 10.1039/a907948c] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Affiliation(s)
- Francis Cadogan
- The Biomedical and Environmental Sensor Technology (BEST) Centre, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland, and School of Chemistry, Queen's University, Belfast BT9 5AG, Northern Ireland
| | - Paddy Kane
- The Biomedical and Environmental Sensor Technology (BEST) Centre, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland, and School of Chemistry, Queen's University, Belfast BT9 5AG, Northern Ireland
| | - M. Anthony McKervey
- The Biomedical and Environmental Sensor Technology (BEST) Centre, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland, and School of Chemistry, Queen's University, Belfast BT9 5AG, Northern Ireland
| | - Dermot Diamond
- The Biomedical and Environmental Sensor Technology (BEST) Centre, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland, and School of Chemistry, Queen's University, Belfast BT9 5AG, Northern Ireland
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27
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Doyle MP, Chapman BJ, Hu W, Peterson CS, McKervey MA, Garcia CF. Catalytic Intramolecular Addition of Metal Carbenes to Remote Furans. Org Lett 1999. [DOI: 10.1021/ol990168t] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Fernández-García C, Prager K, McKervey MA, Walker B, Williams CH. Solid phase synthesis of N-carboxy alkyl-containing peptides derived from enantiopure alpha-keto-beta-aminoacids. Bioorg Med Chem Lett 1998; 8:433-6. [PMID: 9871593 DOI: 10.1016/s0960-894x(98)00054-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
alpha-Keto-beta-aminoacids 5a-c can be reductively aminated with the peptide sequence H2N-Leu-Val-Phe-Phe on a solid support to afford N-carboxy alkyl peptides 1a-c. The N-carboxy alkyl lysine derivative 7 was subsequently extended from the N-terminus with glutamine and histidine residues.
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29
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Lynas JF, Harriott P, Healy A, McKervey MA, Walker B. Inhibitors of the chymotrypsin-like activity of proteasome based on di- and tri-peptidyl alpha-keto aldehydes (glyoxals). Bioorg Med Chem Lett 1998; 8:373-8. [PMID: 9871688 DOI: 10.1016/s0960-894x(98)00030-4] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A series of peptidyl alpha-keto aldehydes (glyoxals) have been synthesised as putative inhibitors of the chymotryptic-like activity of proteasome. The most potent peptides, Cbz-Leu-Leu-Tyr-COCHO and Bz-Leu-Leu-Leu-COCHO, function as slow-binding reversible inhibitors, exhibiting final Ki values of approximately 3.0 nM. These are among the lowest values so far reported for (tri)peptide-based aldehyde-related inhibitors.
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Affiliation(s)
- J F Lynas
- Centre for Peptide and Protein Engineering, School of Biology and Biochemistry, Queen's University Belfast, Northern Ireland, U.K
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Bell SEJ, Browne JK, McKee V, McKervey MA, Malone JF, O'Leary M, Walker A, Arnaud-Neu F, Boulangeot O, Mauprivez O, Schwing-Weill MJ. Cation Complexation by Chemically Modified Calixarenes. 11. Complexation and Extraction of Alkali Cations by Calix[5]- and -[6]arene Ketones. Crystal and Molecular Structures of Calix[5]arene Ketones and Na(+) and Rb(+) Complexes. J Org Chem 1998; 63:489-501. [PMID: 11672037 DOI: 10.1021/jo9713114] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of four calix[5]arenes and three calix[6]arenes (R-calixarene-OCH(2)COR(1)) (R = H or Bu(t)) with alkyl ketone residues (R(1) = Me or Bu(t)) on the lower rim have been synthesized, and their affinity for complexation of alkali cations has been assessed through phase-transfer experiments and stability constant measurements. The conformations of these ketones have been probed by (1)H NMR and X-ray diffraction analysis, and by molecular mechanics calculations. Pentamer 3 (R = R(1) = Bu(t)) possesses a symmetrical cone conformation in solution and a very distorted cone conformation in the solid state. Pentamer 5 (R = H, R(1) = Bu(t)) exists in a distorted 1,2-alternate conformation in the solid state, but in solution two slowly interconverting conformations, one a cone and the other presumed to be 1,2-alternate, can be detected. X-ray structure analysis of the sodium and rubidium perchlorate complexes of 3 reveal the cations deeply encapsulated by the ethereal and carbonyl oxygen atoms in distorted cone conformations which can be accurately reproduced by molecular mechanics calculations. The phase-transfer and stability constant data reveal that the extent of complexation depends on calixarene size and the nature of the alkyl residues adjacent to the ketonic carbonyls with tert-butyl much more efficacious than methyl.
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Affiliation(s)
- Steven E. J. Bell
- Laboratoire de Chimie-Physique, URA au CNRS 405, ECPM, 1, rue Blaise Pascal, 67000 Strasbourg, France
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31
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Affiliation(s)
- Miguel Pitarch
- School of Chemistry, The Queen's University of Belfast, Belfast BT9 5AG, Northern Ireland
| | - Vickie McKee
- School of Chemistry, The Queen's University of Belfast, Belfast BT9 5AG, Northern Ireland
| | - Mark Nieuwenhuyzen
- School of Chemistry, The Queen's University of Belfast, Belfast BT9 5AG, Northern Ireland
| | - M. Anthony McKervey
- School of Chemistry, The Queen's University of Belfast, Belfast BT9 5AG, Northern Ireland
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Affiliation(s)
- Jeremy D. Glennon
- Department of Chemistry, University College Cork, Cork, Ireland, and School of Chemistry, Queen's University, Belfast, N. Ireland
| | - Sharon Hutchinson
- Department of Chemistry, University College Cork, Cork, Ireland, and School of Chemistry, Queen's University, Belfast, N. Ireland
| | - Stephen J. Harris
- Department of Chemistry, University College Cork, Cork, Ireland, and School of Chemistry, Queen's University, Belfast, N. Ireland
| | - Andrew Walker
- Department of Chemistry, University College Cork, Cork, Ireland, and School of Chemistry, Queen's University, Belfast, N. Ireland
| | - M. Anthony McKervey
- Department of Chemistry, University College Cork, Cork, Ireland, and School of Chemistry, Queen's University, Belfast, N. Ireland
| | - Conor C. McSweeney
- Department of Chemistry, University College Cork, Cork, Ireland, and School of Chemistry, Queen's University, Belfast, N. Ireland
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O'Connor KM, Henderson W, O'Neill E, Arrigan DWM, Harris SJ, McKervey MA, Svehla G. Calix[4]Arenes in the partial cone conformation as ionophores in silver ion-selective electrodes. ELECTROANAL 1997. [DOI: 10.1002/elan.1140090410] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Arnaud-Neu F, Cremin S, Harris S, McKervey MA, Schwing-Weill MJ, Schwinté P, Walker A. Complexation of Pr3+, Eu3+, Yb3+ and Th4+ ions by calixarene carboxylates. ACTA ACUST UNITED AC 1997. [DOI: 10.1039/a602631a] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Arnaud-Neu F, Barrett G, Corry D, Cremin S, Ferguson G, Gallagher JF, Harris SJ, McKervey MA, Schwing‐Weill M. Cation complexation by chemically modified calixarenes. Part 10. Thioamide derivatives of p-tert-butylcalix[4]-, [5]- and [6]-arenes with selectivity for copper, silver, cadmium and lead. X-Ray molecular structures of calix[4]arene thioamide–lead(II) and calix[4]arene amide–copper(II) complexes. ACTA ACUST UNITED AC 1997. [DOI: 10.1039/a605417j] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Doyle MP, Protopopova MN, Peterson CS, Vitale JP, McKervey MA, García CF. Formation of Macrocycles by Catalytic Intramolecular Aromatic Cycloaddition of Metal Carbenes to Remote Arenes. J Am Chem Soc 1996. [DOI: 10.1021/ja961627d] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
A new lupane type triterpenic acid, pulsatillic acid, and two new lupane type triterpenoid glycosides, pulsatilloside A and B, along with the known 23-hydroxybetulinic acid were isolated from the roots of Pulsatilla chinensis. Their structures were characterized as 3-oxo-23-hydroxy-lup-20(29)-en-28-oic acid, 3 beta, 23-dihydroxy-lup-20(29)-en-28-oic acid 3-O-alpha-L-arabinopyranoside and 3 beta, 23-dihydroxy-lup-20(29)-en-28-oic acid 28-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside on the basis of hydrolysis and spectral evidence including two-dimensional relay HOHAHA, one-dimensional multiple relay COSY and ROESY NMR techniques. Pulsatillic acid exhibited cytotoxic activities against P-388, Lewis lung carcinoma and human large-cell lung carcinoma.
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Affiliation(s)
- W C Ye
- Department of Phytochemistry, China Pharmaceutical University, Nanjing, China
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Abstract
Patensin, a new triterpenoid glycoside, was isolated from the ethanolic extraction of the roots of Pulsatilla patens var. multifida. Its structure was established as hederagenin 3-O-beta-D-galactopyranosyl-(1-->2)-beta-D- glucopyranoside on the basis of hydrolysis and spectral evidence including 1D and 2D NMR techniques.
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Affiliation(s)
- W C Ye
- Department of Phytochemistry, China Pharmaceutical University, Nanjing
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Malone JF, Marrs DJ, McKervey MA, O'Hagan P, Thompson N, Walker A, Arnaud-Neu F, Mauprivez O, Schwing-Weill MJ, Dozol JF, Rouquette H, Simon N. Calix[n]arene phosphine oxides. A new series of cation receptors for extraction of europium, thorium, plutonium and americium in nuclear waste treatment. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/c39950002151] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Arnaud-Neu F, Barrett G, Fanni S, Marrs D, McGregor W, McKervey MA, Schwing-Weill MJ, Vetrogon V, Wechsler S. Extraction and solution thermodynamics of complexation of alkali and alkaline-earth cations by calix[4]arene amides. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/p29950000453] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Arnaud-Neu F, Fanni S, Guerra L, McGregor W, Ziat K, Schwing-Weill MJ, Barrett G, McKervey MA, Marrs D, Seward EM. Cation complexation by chemically modified calixarenes. Part 7. Transport of alkali cations by p-tert-butylcalix[n]arene esters and amides. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/p29950000113] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Diamond D, Cadogan A, McKittrick T, Grady T, Harris SJ, McKervey MA. Characteristics of sodium-selective electrodes based on a triethylester monoacid derivative of p-tert-butylcalix[4]arene. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/ai9953200137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ye T, García CF, McKervey MA. Chemoselectivity and stereoselectivity of cyclisation of α-diazocarbonyls leading to oxygen and sulfur heterocycles catalysed by chiral rhodium and copper catalysts. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/p19950001373] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Grady T, Maskula S, Diamond D, Marrs DJ, McKervey MA, O'Hagan P. Characteristics of a europium-selective electrode based on a calix[4]arene tetraphosphine oxide. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/ai9953200471] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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