351
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l-Isofucoselenofagomine and derivatives: dual activities as antioxidants and as glycosidase inhibitors. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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352
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Manna D, Mugesh G. Regioselective deiodination of thyroxine by iodothyronine deiodinase mimics: an unusual mechanistic pathway involving cooperative chalcogen and halogen bonding. J Am Chem Soc 2012; 134:4269-79. [PMID: 22352472 DOI: 10.1021/ja210478k] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Iodothyronine deiodinases (IDs) are mammalian selenoenzymes that catalyze the conversion of thyroxine (T4) to 3,5,3'-triiodothyronine (T3) and 3,3',5'-triiodothyronine (rT3) by the outer- and inner-ring deiodination pathways, respectively. These enzymes also catalyze further deiodination of T3 and rT3 to produce a variety of di- and monoiodo derivatives. In this paper, the deiodinase activity of a series of peri-substituted naphthalenes having different amino groups is described. These compounds remove iodine selectively from the inner-ring of T4 and T3 to produce rT3 and 3,3'-diiodothyronine (3,3'-T2), respectively. The naphthyl-based compounds having two selenols in the peri-positions exhibit much higher deiodinase activity than those having two thiols or a thiol-selenol pair. Mechanistic investigations reveal that the formation of a halogen bond between the iodine and chalcogen (S or Se) and the peri-interaction between two chalcogen atoms (chalcogen bond) are important for the deiodination reactions. Although the formation of a halogen bond leads to elongation of the C-I bond, the chalcogen bond facilitates the transfer of more electron density to the C-I σ* orbitals, leading to a complete cleavage of the C-I bond. The higher activity of amino-substituted selenium compounds can be ascribed to the deprotonation of thiol/selenol moiety by the amino group, which not only increases the strength of halogen bond but also facilitates the chalcogen-chalcogen interactions.
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Affiliation(s)
- Debasish Manna
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India
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353
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Bhuyan BJ, Mugesh G. Antioxidant activity of peptide-based angiotensin converting enzyme inhibitors. Org Biomol Chem 2012; 10:2237-47. [PMID: 22307539 DOI: 10.1039/c2ob06533a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Angiotensin converting enzyme (ACE) inhibitors are important for the treatment of hypertension as they can decrease the formation of vasopressor hormone angiotensin II (Ang II) and elevate the levels of vasodilating hormone bradykinin. It is observed that bradykinin contains a Ser-Pro-Phe motif near the site of hydrolysis. The selenium analogues of captopril represent a novel class of ACE inhibitors as they also exhibit significant antioxidant activity. In this study, several di- and tripeptides containing selenocysteine and cysteine residues at the N-terminal were synthesized. Hydrolysis of angiotensin I (Ang I) to Ang II by ACE was studied in the presence of these peptides. It is observed that the introduction of L-Phe to Sec-Pro and Cys-Pro peptides significantly increases the ACE inhibitory activity. On the other hand, the introduction of L-Val or L-Ala decreases the inhibitory potency of the parent compounds. The presence of an L-Pro moiety in captopril analogues appears to be important for ACE inhibition as the replacement of L-Pro by L-piperidine 2-carboxylic acid decreases the ACE inhibition. The synthetic peptides were also tested for their ability to scavenge peroxynitrite (PN) and to exhibit glutathione peroxidase (GPx)-like activity. All the selenium-containing peptides exhibited good PN-scavenging and GPx activities.
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Affiliation(s)
- Bhaskar J Bhuyan
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India
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354
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Supramolecular aggregation patterns based on the bio-inspired Se(lone pair)⋯π(aryl) synthon. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2011.10.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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355
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Tiekink ERT. Therapeutic potential of selenium and tellurium compounds: opportunities yet unrealised. Dalton Trans 2012; 41:6390-5. [PMID: 22252404 DOI: 10.1039/c2dt12225a] [Citation(s) in RCA: 129] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Despite being disparaged for their malodorous and toxic demeanour, compounds of selenium, a bio-essential element, and tellurium, offer possibilities as therapeutic agents. Herein, their potential use as drugs, for example, as anti-viral, anti-microbial, anti-inflammatory agents, etc., will be surveyed along with a summary of the established biological functions of selenium. The natural biological functions of tellurium remain to be discovered.
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Affiliation(s)
- Edward R T Tiekink
- Department of Chemistry, University of Malaya, 50603, Kuala, Lumpur, Malaysia.
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356
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Viglianisi C, Simone L, Menichetti S. Copper‐Mediated One‐Pot Transformation of 2‐N‐Sulfonyl‐ aminoaryl Diselenides into Benzo[b][1,4]selenazines. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100587] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Caterina Viglianisi
- Dipartimento di Chimica “U. Schiff”, Polo Scientifico e Tecnologico Università di Firenze, Via della Lastruccia, 3‐13, 50019 Sesto Fiorentino, Italy, Fax. (+39)‐055‐457‐3531
| | - Lavinia Simone
- Dipartimento di Chimica “U. Schiff”, Polo Scientifico e Tecnologico Università di Firenze, Via della Lastruccia, 3‐13, 50019 Sesto Fiorentino, Italy, Fax. (+39)‐055‐457‐3531
| | - Stefano Menichetti
- Dipartimento di Chimica “U. Schiff”, Polo Scientifico e Tecnologico Università di Firenze, Via della Lastruccia, 3‐13, 50019 Sesto Fiorentino, Italy, Fax. (+39)‐055‐457‐3531
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357
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Thomas J, Rossom WV, Hecke KV, Meervelt LV, Smet M, Maes W, Dehaen W. Selenacalix[3]triazines: synthesis and host–guest chemistry. Chem Commun (Camb) 2012; 48:43-5. [DOI: 10.1039/c1cc15473g] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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358
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359
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Soares LC, Alberto EE, Schwab RS, Taube PS, Nascimento V, Rodrigues OED, Braga AL. Ephedrine-based diselenide: a promiscuous catalyst suitable to mimic the enzyme glutathione peroxidase (GPx) and to promote enantioselective C–C coupling reactions. Org Biomol Chem 2012; 10:6595-9. [DOI: 10.1039/c2ob25539a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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360
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Yi Y, Fa S, Cao W, Zeng L, Wang M, Xu H, Zhang X. Fabrication of well-defined crystalline azacalixarene nanosheets assisted by Se⋯N non-covalent interactions. Chem Commun (Camb) 2012; 48:7495-7. [DOI: 10.1039/c2cc33760f] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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361
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Thomas J, Dobrzańska L, Van Hecke K, Sonawane MP, Robeyns K, Van Meervelt L, Woźniak K, Smet M, Maes W, Dehaen W. Homoselenacalix[4]arenes: synthetic exploration and metallosupramolecular chemistry. Org Biomol Chem 2012; 10:6526-36. [DOI: 10.1039/c2ob25760b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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362
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Lamani DS, Bhowmick D, Mugesh G. Spirodiazaselenuranes: synthesis, structure and antioxidant activity. Org Biomol Chem 2012; 10:7933-43. [DOI: 10.1039/c2ob26156a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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363
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Nascimento V, Alberto EE, Tondo DW, Dambrowski D, Detty MR, Nome F, Braga AL. GPx-Like Activity of Selenides and Selenoxides: Experimental Evidence for the Involvement of Hydroxy Perhydroxy Selenane as the Active Species. J Am Chem Soc 2011; 134:138-41. [DOI: 10.1021/ja209570y] [Citation(s) in RCA: 136] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Vanessa Nascimento
- Department of Chemistry, Federal University of Santa Catarina, Florianópolis-SC,
Brazil
| | - Eduardo E. Alberto
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Daniel W. Tondo
- Department of Chemistry, Federal University of Santa Catarina, Florianópolis-SC,
Brazil
| | - Daniel Dambrowski
- Department of Chemistry, Federal University of Santa Catarina, Florianópolis-SC,
Brazil
| | - Michael R. Detty
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Faruk Nome
- Department of Chemistry, Federal University of Santa Catarina, Florianópolis-SC,
Brazil
| | - Antonio L. Braga
- Department of Chemistry, Federal University of Santa Catarina, Florianópolis-SC,
Brazil
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364
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p-Chloro-diphenyl diselenide, an organoselenium compound, with antidepressant-like and memory enhancer actions in aging male rats. Biogerontology 2011; 13:237-49. [DOI: 10.1007/s10522-011-9369-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Accepted: 11/28/2011] [Indexed: 01/21/2023]
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365
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Asatkar A, Nair S, Verma V, Verma C, Jain T, Singh R, Gupta S, Butcher R. Syntheses of phenoxo-bridged Zn(II) and metallamacrocyclic Hg(II) complexes of organochalcogen (Se, Te) substituted Schiff-bases: structure and DNA-binding studies of Zn(II) complexes. J COORD CHEM 2011. [DOI: 10.1080/00958972.2011.639874] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- A.K. Asatkar
- a Department of Chemistry , Disha Institute of Management and Technology , Raipur 492101 , Chhattisgarh , India
| | - S. Nair
- a Department of Chemistry , Disha Institute of Management and Technology , Raipur 492101 , Chhattisgarh , India
| | - V.K. Verma
- a Department of Chemistry , Disha Institute of Management and Technology , Raipur 492101 , Chhattisgarh , India
| | - C.S. Verma
- a Department of Chemistry , Disha Institute of Management and Technology , Raipur 492101 , Chhattisgarh , India
| | - T.A. Jain
- a Department of Chemistry , Disha Institute of Management and Technology , Raipur 492101 , Chhattisgarh , India
| | - R. Singh
- b ER&IPR, Defence Research and Development Organization , New Delhi 110105 , India
| | - S.K. Gupta
- c School of Studies in Chemistry, Jiwaji University , Gwalior 474011 , India
| | - R.J. Butcher
- d Department of Inorganic and Structural Chemistry , Howard University , Washington , DC 20059 , USA
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366
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367
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Zhang RF, Ru J, Li ZX, Ma CL, Zhang JP. Triorganotin(IV) complexes with substituted benzeneseleninic acids: syntheses, characterization, crystal structures, and antitumor activity. J COORD CHEM 2011. [DOI: 10.1080/00958972.2011.637194] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Ru-Fen Zhang
- a Department of Chemistry , Liaocheng University , Liaocheng 252059 , P.R. China
| | - Jing Ru
- a Department of Chemistry , Liaocheng University , Liaocheng 252059 , P.R. China
| | - Zhen-Xing Li
- a Department of Chemistry , Liaocheng University , Liaocheng 252059 , P.R. China
| | - Chun-Lin Ma
- a Department of Chemistry , Liaocheng University , Liaocheng 252059 , P.R. China
- b Department of Chemistry , Taishan University , Taian 271021 , P.R. China
| | - Jian-Ping Zhang
- b Department of Chemistry , Taishan University , Taian 271021 , P.R. China
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368
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Antony S, Bayse CA. Modeling the Mechanism of the Glutathione Peroxidase Mimic Ebselen. Inorg Chem 2011; 50:12075-84. [DOI: 10.1021/ic201603v] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sonia Antony
- Department of Chemistry and Biochemistry, Old Dominion University, Hampton Boulevard, Norfolk, Virginia 23529, United States
| | - Craig A. Bayse
- Department of Chemistry and Biochemistry, Old Dominion University, Hampton Boulevard, Norfolk, Virginia 23529, United States
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369
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Selvakumar K, Shah P, Singh HB, Butcher RJ. Synthesis, Structure, and Glutathione Peroxidase-Like Activity of Amino Acid Containing Ebselen Analogues and Diaryl Diselenides. Chemistry 2011; 17:12741-55. [DOI: 10.1002/chem.201100930] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2011] [Revised: 08/04/2011] [Indexed: 02/03/2023]
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370
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Enzymatic kinetic resolution of tert-butyl 2-(1-hydroxyethyl)phenylcarbamate, a key intermediate to chiral organoselenanes and organotelluranes. Molecules 2011; 16:8098-109. [PMID: 21934647 PMCID: PMC6264364 DOI: 10.3390/molecules16098098] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Revised: 09/14/2011] [Accepted: 09/15/2011] [Indexed: 12/25/2022] Open
Abstract
The enzymatic kinetic resolution of tert-butyl 2-(1-hydroxyethyl)phenylcarbamate via lipase-catalyzed transesterification reaction was studied. We investigated several reaction conditions and the carbamate was resolved by Candida antarctica lipase B (CAL-B), leading to the optically pure (R)- and (S)-enantiomers. The enzymatic process showed excellent enantioselectivity (E > 200). (R)- and (S)-tert-butyl 2-(1-hydroxyethyl)phenylcarbamate were easily transformed into the corresponding (R)- and (S)-1-(2-aminophenyl)ethanols.
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371
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Press DJ, Back TG. Enhanced Glutathione Peroxidase Activity of Conformationally Restricted Naphthaleneperi-Dichalcogenides. Org Lett 2011; 13:4104-7. [DOI: 10.1021/ol201617t] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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372
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Toxicology and pharmacology of selenium: emphasis on synthetic organoselenium compounds. Arch Toxicol 2011; 85:1313-59. [DOI: 10.1007/s00204-011-0720-3] [Citation(s) in RCA: 330] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Accepted: 05/18/2011] [Indexed: 02/07/2023]
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373
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Satheeshkumar K, Mugesh G. Synthesis and Antioxidant Activity of Peptide-Based Ebselen Analogues. Chemistry 2011; 17:4849-57. [DOI: 10.1002/chem.201003417] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2011] [Indexed: 11/06/2022]
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374
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Hodage AS, Phadnis PP, Wadawale A, Priyadarsini KI, Jain VK. Synthesis, characterization and structures of 2-(3,5-dimethylpyrazol-1-yl)ethylseleno derivatives and their probable glutathione peroxidase (GPx) like activity. Org Biomol Chem 2011; 9:2992-8. [DOI: 10.1039/c0ob00807a] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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375
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Bayse CA, Pavlou A. Tuning the activity of glutathione peroxidase mimics through intramolecular Se⋯N,O interactions: A DFT study incorporating solvent-assisted proton exchange (SAPE). Org Biomol Chem 2011; 9:8006-15. [DOI: 10.1039/c1ob05827d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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376
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Selvakumar K, Singh HB, Goel N, Singh UP, Butcher RJ. Synthesis and structural characterization of pincer type bicyclic diacyloxy- and diazaselenuranes. Dalton Trans 2011; 40:9858-67. [DOI: 10.1039/c1dt10862j] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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377
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Balkrishna SJ, Bhakuni BS, Chopra D, Kumar S. Cu-Catalyzed Efficient Synthetic Methodology for Ebselen and Related Se−N Heterocycles. Org Lett 2010; 12:5394-7. [PMID: 21053969 DOI: 10.1021/ol102027j] [Citation(s) in RCA: 104] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shah Jaimin Balkrishna
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER), Bhopal, MP 462 023, India
| | - Bhagat Singh Bhakuni
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER), Bhopal, MP 462 023, India
| | - Deepak Chopra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER), Bhopal, MP 462 023, India
| | - Sangit Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER), Bhopal, MP 462 023, India
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