1
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Jindani S, Ganguly B. Exploiting the role of stereoelectronic effects to design the antagonists of the human complement C3a receptor. NEW J CHEM 2021. [DOI: 10.1039/d1nj00730k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stereoelectronic effects are crucial in governing the conformational behaviour of small molecules bearing heterocyclic rings adjacent to amides.
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Affiliation(s)
- Sana Jindani
- Computation and Simulation Unit (Analytical Discipline and Centralized Instrument Facility)
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar 364002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Bishwajit Ganguly
- Computation and Simulation Unit (Analytical Discipline and Centralized Instrument Facility)
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar 364002
- India
- Academy of Scientific and Innovative Research (AcSIR)
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2
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Jayasree EG, Sukumar C. A DFT study on the cleavage of dichalcogenide bridges in cystines and selenocystines: Effect of hydrogen bonding. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Yadav P, Ballabh A. N-(thiazol-2-yl)benzamide derivatives as a new series of supramolecular gelators: Role of methyl functionality and S⋯O interaction. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2019.121027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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4
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Hayashi S, Uegaito M, Nishide T, Tanaka E, Nakanishi W, Sasamori T, Tokitoh N, Minoura M. Nature of the E⋯E′ interactions (E, E′ = O, S, Se, and Te) at naphthalene 1,8-positions with fine details of the structures: experimental and theoretical investigations. NEW J CHEM 2019. [DOI: 10.1039/c9nj02198a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The nature of E⋯E′ in 1-RE–8-R′E′C10H6 (E/E′ = O, S, Se and Te) is clarified with the QTAIM approach and NBO analysis, after structural determinations.
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Affiliation(s)
- Satoko Hayashi
- Faculty of Systems Engineering
- Wakayama University
- Wakayama 640-8510
- Japan
| | - Manabu Uegaito
- Faculty of Systems Engineering
- Wakayama University
- Wakayama 640-8510
- Japan
| | - Taro Nishide
- Faculty of Systems Engineering
- Wakayama University
- Wakayama 640-8510
- Japan
| | - Eiichiro Tanaka
- Faculty of Systems Engineering
- Wakayama University
- Wakayama 640-8510
- Japan
| | - Waro Nakanishi
- Faculty of Systems Engineering
- Wakayama University
- Wakayama 640-8510
- Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences
- Nagoya City University
- Nagoya
- Japan
| | | | - Mao Minoura
- Department of Chemistry
- College of Science
- Rikkyo University
- Tokyo
- Japan
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5
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Yadav P, Patel V, Ballabh A. Role of S…O non-bonded interaction in controlling supramolecular assemblies in a new series of 2-aminobenzothiazole based organic salts/ co-crystals. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2018.04.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Van KN, Romo D. Multicomponent, Enantioselective Michael-Michael-Aldol-β-Lactonizations Delivering Complex β-Lactones. J Org Chem 2018; 83:632-643. [PMID: 29219311 DOI: 10.1021/acs.joc.7b02543] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Optically active, tertiary amine Lewis bases react with unsaturated acid chlorides to deliver chiral, α,β-unsaturated acylammonium salts. These intermediates participate in a catalytic, enantioselective, three-component process delivering bi- and tricyclic β-lactones through a Michael-Michael-aldol-β-lactonization. In a single operation, the described multicomponent, organocascade process forms complex bi- and tricyclic β-lactones by generating four new bonds, two rings, and up to four contiguous stereocenters. In the racemic series, yields of 22-75% were achieved using 4-pyrrolidinopyridine as Lewis base. In the enantioselective series employing isothiourea catalysts, a kinetic resolution of the initially formed racemic Michael adduct appears operative, providing yields of 46% to quantitative (based on 50% max) with up to 94:6 er. Some evidence for a dynamic kinetic asymmetric transformation for tricyclic-β-lactone 1d was obtained following optimization (yields up to 61%, 94:6 er) through a presumed reversible Michael.
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Affiliation(s)
- Khoi N Van
- Department of Chemistry, Texas A&M University , College Station, Texas 77842, United States
| | - Daniel Romo
- Department of Chemistry & Biochemistry, Baylor University , Waco, Texas 76798, United States
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7
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Geboes Y, De Vleeschouwer F, De Proft F, Herrebout WA. Exploiting the σ-Hole Concept: An Infrared and Raman-Based Characterization of the S⋅⋅⋅O Chalcogen Bond between 2,2,4,4-Tetrafluoro-1,3-dithiethane and Dimethyl Ether. Chemistry 2017; 23:17384-17392. [DOI: 10.1002/chem.201704406] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Yannick Geboes
- Department of Chemistry; University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp (Belgium), Eenheid Algemene Chemie (ALGC), Member of the QCMM VUB-UGent Alliance Research Group, Vrije Universiteit Brussel (VUB); Pleinlaan 2 1050 Brussels Belgium
| | - Freija De Vleeschouwer
- Eenheid Algemene Chemie (ALGC), Member of the QCMM VUB-UGent Alliance Research Group; Vrije Universiteit Brussel (VUB); Pleinlaan 2 1050 Brussels Belgium
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC), Member of the QCMM VUB-UGent Alliance Research Group; Vrije Universiteit Brussel (VUB); Pleinlaan 2 1050 Brussels Belgium
| | - Wouter A. Herrebout
- Department of Chemistry; University of Antwerp; Groenenborgerlaan 171 2020 Antwerp Belgium
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8
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Zierkiewicz W, Fanfrlík J, Hobza P, Michalska D, Zeegers-Huyskens T. Ab initio and DFT studies of the interaction between carbonyl and thiocarbonyl groups: the role of S···O chalcogen bonds. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1972-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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The Bright Future of Unconventional σ/π-Hole Interactions. Chemphyschem 2015; 16:2496-517. [DOI: 10.1002/cphc.201500314] [Citation(s) in RCA: 475] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Indexed: 01/25/2023]
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10
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Zhou F, Liu R, Li P, Zhang H. On the properties of S⋯O and S⋯π noncovalent interactions: the analysis of geometry, interaction energy and electron density. NEW J CHEM 2015. [DOI: 10.1039/c4nj01420k] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report computational studies on the origin and magnitude of non-covalent S⋯O and S⋯π interactions.
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Affiliation(s)
- Fangfang Zhou
- State key laboratory of supramolecular structure and materials
- Jilin University
- Changchun 130012
- P. R. China
| | - Ruirui Liu
- State key laboratory of supramolecular structure and materials
- Jilin University
- Changchun 130012
- P. R. China
| | - Ping Li
- State key laboratory of supramolecular structure and materials
- Jilin University
- Changchun 130012
- P. R. China
| | - Houyu Zhang
- State key laboratory of supramolecular structure and materials
- Jilin University
- Changchun 130012
- P. R. China
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11
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Louvain N, Frison G, Dittmer J, Legein C, Mercier N. Noncovalent Chalcogen Bonds and Disulfide Conformational Change in the Cystamine-Based Hybrid Perovskite [H3N(CH2)2SS(CH2)2NH3]PbIII4. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201301017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Bolgova AI, Lugovik KI, Subbotina JO, Slepukhin PA, Bakulev VA, Belskaya NP. Unexpected result for the acylation of arylhydrazonoethanethioamides. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.06.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Sarma BK. Redox regulation of protein tyrosine phosphatase 1B (PTP1B): Importance of steric and electronic effects on the unusual cyclization of the sulfenic acid intermediate to a sulfenyl amide. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.05.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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15
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Keerthi K, Rajapakse A, Sun D, Gates KS. Synthesis and characterization of a small analogue of the anticancer natural product leinamycin. Bioorg Med Chem 2013; 21:235-41. [PMID: 23168080 PMCID: PMC3532941 DOI: 10.1016/j.bmc.2012.10.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 10/15/2012] [Accepted: 10/20/2012] [Indexed: 11/21/2022]
Abstract
Leinamycin (1) is a Streptomyces-derived natural product that displays nanomolar IC(50) values against human cancer cell lines. In the work described here, we report the synthesis and characterization of a small leinamycin analogue 19 that closely resembles the 'upper-right quadrant' of the natural product, consisting of an alicyclic 1,2-dithiolan-3-one 1-oxide heterocycle connected to an alkene by a two-carbon linker. The results indicate that this small analogue contains the core set of functional groups required to enable thiol-triggered generation of both redox active polysulfides and an episulfonium ion intermediate via the complex reaction cascade first seen in the natural product leinamycin. The small leinamycin analogue 19 caused thiol-triggered oxidative DNA strand cleavage in a manner similar to the natural product, but did not alkyate duplex DNA effectively. This highlights the central role of the 18-membered macrocycle of leinamycin in driving efficient DNA alkylation by the natural product.
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Affiliation(s)
- Kripa Keerthi
- Department of Chemistry, University of Missouri, 125 Chemistry Building Columbia, MO 65211
| | - Anuruddha Rajapakse
- Department of Chemistry, University of Missouri, 125 Chemistry Building Columbia, MO 65211
| | - Daekyu Sun
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, BIO5 Institute, Room 102, 1657 E. Helen Street, Tucson, Arizona 85721
| | - Kent S. Gates
- Department of Chemistry, University of Missouri, 125 Chemistry Building Columbia, MO 65211
- Department of Biochemistry, University of Missouri, 125 Chemistry Building Columbia, MO 65211
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16
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Close intramolecular sulfur–oxygen contacts: modified force field parameters for improved conformation generation. J Comput Aided Mol Des 2012; 26:1195-205. [DOI: 10.1007/s10822-012-9610-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Accepted: 09/20/2012] [Indexed: 11/26/2022]
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17
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Sivaramakrishnan S, Breydo L, Sun D, Gates KS. The macrocycle of leinamycin imparts hydrolytic stability to the thiol-sensing 1,2-dithiolan-3-one 1-oxide unit of the natural product. Bioorg Med Chem Lett 2012; 22:3791-4. [PMID: 22560586 DOI: 10.1016/j.bmcl.2012.04.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 03/21/2012] [Accepted: 04/02/2012] [Indexed: 10/28/2022]
Abstract
Reaction of cellular thiols with the 1,2-dithiolan-3-one 1-oxide moiety of leinamycin triggers the generation of DNA-damaging reactive intermediates. Studies with small, synthetic analogues of leinamycin reveal that the macrocyclic portion of the natural product imparts remarkable hydrolytic stability to the 1,2-dithiolan-3-one 1-oxide heterocycle without substantially compromising its thiol-sensing property.
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18
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19
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Thermal solid-state Z/E isomerization of 2-alkylidene-4-oxothiazolidines: Effects of non-covalent interactions. JOURNAL OF THE SERBIAN CHEMICAL SOCIETY 2011. [DOI: 10.2298/jsc100607038d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Configurational isomerization of stereo-defined 5-substituted and
unsubstituted 2-alkylidene-4-oxothiazolidines 1 in the solid state, giving
the Z/E mixtures in various ratios, was investigated by 1H-NMR spectroscopy,
X-ray powder crystallography and differential scanning calorimetry (DSC). The
Z/E composition can be rationalized in terms of non-covalent interactions,
involving intermolecular and intramolecular hydrogen bonding and directional
non-bonded 1,5-type S...O interactions. X-Ray powder crystallography, using
selected crystalline (Z)-4- oxothiazolidine substrates, revealed
transformation to the amorphous state during the irreversible Z ? E process.
A correlation between previous results on the Z/E isomerization in solution
and now in the solid state was established.
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20
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González FV, Jain A, Rodríguez S, Sáez JA, Vicent C, Peris G. Stereoisomerization of β-Hydroxy-α-sulfenyl-γ-butyrolactones Controlled by Two Concomitant 1,4-Type Nonbonded Sulfur−Oxygen Interactions As Analyzed by X-ray Crystallography. J Org Chem 2010; 75:5888-94. [DOI: 10.1021/jo1009454] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Florenci V. González
- Departament de Química Inorgànica i Orgànica and Serveis Centrals d’Instrumentació Científica, Universitat Jaume I, 12080 Castelló, Spain
| | - Amit Jain
- Departament de Química Inorgànica i Orgànica and Serveis Centrals d’Instrumentació Científica, Universitat Jaume I, 12080 Castelló, Spain
| | - Santiago Rodríguez
- Departament de Química Inorgànica i Orgànica and Serveis Centrals d’Instrumentació Científica, Universitat Jaume I, 12080 Castelló, Spain
| | - José A. Sáez
- Departament de Química Inorgànica i Orgànica and Serveis Centrals d’Instrumentació Científica, Universitat Jaume I, 12080 Castelló, Spain
| | - Cristian Vicent
- Departament de Química Inorgànica i Orgànica and Serveis Centrals d’Instrumentació Científica, Universitat Jaume I, 12080 Castelló, Spain
| | - Gabriel Peris
- Departament de Química Inorgànica i Orgànica and Serveis Centrals d’Instrumentació Científica, Universitat Jaume I, 12080 Castelló, Spain
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21
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Shishkin OV, Omelchenko IV, Kalyuzhny AL, Paponov BV. Intramolecular S···O chalcogen bond in thioindirubin. Struct Chem 2010. [DOI: 10.1007/s11224-010-9638-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Evolution of carboxymethyl cellulose layer morphology on hydrophobic mineral surfaces: Variation of polymer concentration and ionic strength. J Colloid Interface Sci 2010; 346:303-10. [DOI: 10.1016/j.jcis.2010.03.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Revised: 03/01/2010] [Accepted: 03/03/2010] [Indexed: 11/22/2022]
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23
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Nakanishi W, Hayashi S, Narahara K. Polar coordinate representation of Hb(rc) versus (h2/8m)nabla2rhob(rc) at BCP in AIM analysis: classification and evaluation of weak to strong interactions. J Phys Chem A 2010; 113:10050-7. [PMID: 19621871 DOI: 10.1021/jp903622a] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polar coordinate (R, theta) representation is proposed for the plot of Hb(rc) versus (h2/8m)nabla2rhob(rc) in AIM analysis to classify, evaluate, and understand weak to strong interactions in a unified way and in more detail; Hb(rc) and nabla2rhob(rc) are total electron energy densities and the Laplacian of rhob(rc) at bond critical points (BCPs: rc), respectively, where rhob(rc) are electron densities at rc. Both the x- and y-axes of the plot are expressed in the common unit of energy since Hb(rc) = Gb(rc) + Vb(rc) and (h2/8m)nabla2rhob(rc) = Hb(rc) - Vb(rc)/2 (= Gb(rc) + Vb(rc)/2), where Gb(rc) and Vb(rc) are kinetic energy densities and potential energy densities, respectively. Data employed for the plot are calculated at BCPs for full-optimized structures and optimized structures with the fixed distances (r) of r = r(o) + wa(o), where r(o) are the full-optimized distances, a(o) is the Bohr radius, and w = +/-0.1 and +/-0.2. The plot draws a helical stream starting from near origin (Hb(rc) = (h2/8m)nabla2rhob(rc) = 0) for very weak interactions and turns to the right as interactions become stronger. The helical stream is well described by the polar coordinate representation with (R, theta); R is given in the energy unit, and theta in degrees is measured from the y-axis. The ratio of Vb(rc)/Gb(rc) (= k) controls theta, of which an acceptable range in the plot is 45.0 < theta < 206.6 degrees. Each plot for an interaction gives a curve, which supplies important information. It is expressed by theta(p) and kappa(p); theta(p) corresponds to the tangent line measured from the y-direction, and kappa(p) is the curvature of the plot at w = 0. The polar coordinate (R, theta) representation with (theta(p), kappa(p)) helps us to classify, evaluate, and understand the nature of weak to strong interactions in a unified way.
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Affiliation(s)
- Waro Nakanishi
- Department of Material Science and Chemistry, Faculty of Systems Engineering, Wakayama University, 930 Sakaedani, Wakayama, 640-8510 Japan.
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Shigetomi T, Okuma K, Nagahora N, Yokomori Y. Isolation and Reaction of 1,2-Dithietan-3-one: Formation of Thiolato Thiocarboxylato Metal Complexes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2009. [DOI: 10.1246/bcsj.82.855] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Hayashi S, Nakanishi W. Noncovalent Z···Z (Z=O, S, Se, and Te) Interactions: How Do They Operate to Control Fine Structures of 1,8-Dichalcogene-Substituted Naphthalenes? BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2008. [DOI: 10.1246/bcsj.81.1605] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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26
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Nakanishi W, Hayashi S, Narahara K. Atoms-in-Molecules Dual Parameter Analysis of Weak to Strong Interactions: Behaviors of Electronic Energy Densities versus Laplacian of Electron Densities at Bond Critical Points. J Phys Chem A 2008; 112:13593-9. [DOI: 10.1021/jp8054763] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Waro Nakanishi
- Department of Material Science and Chemistry, Faculty of Systems Engineering, Wakayama University, 930 Sakaedani, Wakayama, 640-8510 Japan
| | - Satoko Hayashi
- Department of Material Science and Chemistry, Faculty of Systems Engineering, Wakayama University, 930 Sakaedani, Wakayama, 640-8510 Japan
| | - Kenji Narahara
- Department of Material Science and Chemistry, Faculty of Systems Engineering, Wakayama University, 930 Sakaedani, Wakayama, 640-8510 Japan
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27
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Yamane K, Hayashi S, Nakanishi W, Sasamori T, Tokitoh N. Fine structures of 1-(arylethynylselanyl)naphthalenes: Characteristic features brought by the ethynylselanyl group. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.04.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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28
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29
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Nakanishi W, Hayashi S, Morinaka S, Sasamori T, Tokitoh N. Extended hypervalent E′⋯E–E⋯E′ 4c–6e (E, E′ = Se, S) interactions: structure, stability and reactivity of 1-(8-PhE′C10H6)EE(C10H6E′Ph-8′)-1′. NEW J CHEM 2008. [DOI: 10.1039/b805678a] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Roy D, Sunoj RB. Intramolecular nonbonding interactions in organoseleniums: Quantification using a computational thermochemical approach. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.theochem.2007.01.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Regioselective synthesis of 1,3-thiazines by sequential 4-oxothiazolidine to 1,2-dithiole to 1,3-thiazine transformations: role of intramolecular non-bonded S⋯O interactions. Tetrahedron 2007. [DOI: 10.1016/j.tet.2006.12.075] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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Réthoré C, Madalan A, Fourmigué M, Canadell E, Lopes EB, Almeida M, Clérac R, Avarvari N. O⋯S vs. N⋯S intramolecular nonbonded interactions in neutral and radical cation salts of TTF-oxazoline derivatives: synthesis, theoretical investigations, crystalline structures, and physical properties. NEW J CHEM 2007. [DOI: 10.1039/b701617d] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Brito I, López-Rodríguez M, Bényei A, Szilágyi L. Crystal and molecular structures of diglycosyl disulfide derivatives. Carbohydr Res 2006; 341:2967-72. [PMID: 17087925 DOI: 10.1016/j.carres.2006.10.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2006] [Revised: 10/13/2006] [Accepted: 10/18/2006] [Indexed: 11/25/2022]
Abstract
The crystal and molecular structures of S-(2,3,4,6-tetra-O-acetyl-beta-d-glucopyranosyl)-S'-(2,3,4,6-tetra-O-acetyl-beta-d-galactopyranosyl)disulfide (1) and the mono-sulfoxide (3) of bis(2,3,4,6-tetra-O-acetyl-beta-d-glucopyranosyl)disulfide (2) are described. Comparison of 2 and 3, containing -S-S- and -S-S(O)- bonds, respectively, allows to delineate structural differences brought about by the different oxidation states of one of the sulfur atoms in carbohydrate disulfides.
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Affiliation(s)
- Ivan Brito
- Department of Chemistry, University of Antofagasta, Casilla 170 Antofagasta, Chile
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34
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Ji C, Ahmida M, Chahma M, Houmam A. Radical/Ion Pair Formation in the Electrochemical Reduction of Arene Sulfenyl Chlorides. J Am Chem Soc 2006; 128:15423-31. [PMID: 17132009 DOI: 10.1021/ja062796t] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Important aspects of the electrochemical reduction of a series of substituted arene sulfenyl chlorides are investigated. A striking change is observed in the reductive cleavage mechanism as a function of the substituent on the aryl ring of the arene sulfenyl chloride. With p-substituted phenyl chlorides a "sticky" dissociative ET mechanism takes place where a concerted ET mechanism leads to the formation of a radical/anion cluster before decomposition. With o-nitropheyl sulfenyl substituted chlorides a stepwise mechanism is observed where through space S...O interactions play an important role stabilizing both the neutral molecules and their reduced forms. Disulfides are generated through a nucleophilic reaction of the two-electron reduction produced anion (arenethiolate) on the parent molecule. The dissociative electron transfer theory, as well as its extension to the case of strong in-cage interactions between the produced fragments, along with the gas phase chemical quantum calculations results helped rationalize both the observed change in the ET mechanism and the occurrence of the "sticky dissociative" ET mechanism. The radical/anion pair interactions have been determined both in solution as well as in gas phase. This study shows that despite the low magnitude of in-cage interactions in acetonitrile as compared to in the gas phase, their existence strongly affects the kinetics of the involved reactions. It also shows that, as expected, these interactions are reinforced by the existence of strong electron-withdrawing substituents.
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Affiliation(s)
- Chang Ji
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, Guelph, Ontario, Canada N1G 2W1
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35
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Rodríguez S, Kneeteman M, Izquierdo J, López I, González F, Peris G. Diastereoselective synthesis of γ-hydroxy α,β-epoxyesters and their conversion into β-hydroxy α-sulfenyl γ-butyrolactones. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.09.030] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Roy D, Sunoj RB. Quantification of Intramolecular Nonbonding Interactions in Organochalcogens. J Phys Chem A 2006; 110:5942-7. [PMID: 16640393 DOI: 10.1021/jp060218t] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Intramolecular nonbonding interactions between chalcogen atoms in a series of ortho substituted arylselenides (S/O...Se-Y, with Y = -Me, -CN, -Cl, and -F) are quantified using the coupled cluster CCSD(T)/cc-pVDZ level of theory. A homodesmic reaction method as well as an ortho-para approach are employed in evaluating the strength of intramolecular interactions. Comparison of the results obtained using the ab initio MP2 method and pure and hybrid density functional theories are performed with that of the coupled cluster values to assess the quality of different density functionals in evaluating the strength of nonbonding interactions. The interaction energies are found to be higher when the thioformyl group acts as the donor and the Se-F bond acts as the acceptor. In a given series with the same donor atom, the strength of the interaction follows the order Me < CN < Cl < F, exhibiting fairly high sensitivity to the group attached to selenium (Se-Y). Analysis of electron density at the S/O...Se bond critical point within the Atoms in Molecule framework shows a very good correlation with the computed intramolecular interaction energies.
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Affiliation(s)
- Dipankar Roy
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai
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Abstract
Chiral structures profoundly influence chemical and biological processes. While chiral carbon biomolecules have received much attention, chirality is also possible in certain sulfur compounds; just as with carbon, there can be differences in the physiological behavior of chiral sulfur compounds. For instance, one drug enantiomer, Nexium (esomeprazole, a chiral sulfoxide), is used for its superior clinical properties as a proton pump inhibitor over the racemic mixture, Prilosec (Losec, omeprazole). This critical review introduces sulfur stereochemistry and nomenclature, and provides a comprehensive approach to chiral sulfur compounds and their enzymatic reactions in general and secondary metabolism. The major structural types of biological interest are sulfonium salts, sulfoxides, and sulfoximines. (103 references).
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Affiliation(s)
- Ronald Bentley
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA.
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38
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Paulini R, Müller K, Diederich F. Orthogonale multipolare Wechselwirkungen in chemischen und biologischen Strukturen. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200462213] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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39
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Paulini R, Müller K, Diederich F. Orthogonal Multipolar Interactions in Structural Chemistry and Biology. Angew Chem Int Ed Engl 2005; 44:1788-805. [PMID: 15706577 DOI: 10.1002/anie.200462213] [Citation(s) in RCA: 378] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The past few decades of molecular recognition studies have greatly enhanced our knowledge on apolar, ion-dipole, and hydrogen-bonding interactions. However, much less attention has been given to the role that multipolar interactions, in particular those with orthogonal dipolar alignment, play in organizing a crystal lattice or stabilizing complexes involving biological receptors. By using results from database mining, this review attempts to give an overview of types and structural features of these previously rather overlooked interactions. A number of illustrative examples of these interactions found in X-ray crystal structures of small molecules and protein-ligand complexes demonstrate their propensity and thus potential importance for both, chemical and biological molecular recognition processes.
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Affiliation(s)
- Ralph Paulini
- Laboratorium für Organische Chemie, ETH-Hönggerberg, HCI, 8093 Zürich, Switzerland
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40
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Ji C, Goddard JD, Houmam A. The Role of Nonbonded Sulfur−Oxygen Interaction in the Dissociative Electron Transfer to Nitro-Substituted Arenesulfenyl Chlorides. J Am Chem Soc 2004; 126:8076-7. [PMID: 15225023 DOI: 10.1021/ja049575c] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The electrochemical reduction of p-nitrophenyl sulfenyl chloride, o-nitrophenyl sulfenyl chloride as well as bis(4-nitrophenyl) disulfide and bis(2-dinitrophenyl) disulfide was investigated in acetonitrile at an inert electrode. Reduction standard potentials as well standard heterogeneous electron-transfer rate constants have been determined using convolution analysis. An unexpected big difference in the thermodynamics and kinetics of the initial electron-transfer process as well as a striking change in the reductive cleavage mechanism of the S-Cl bond as a function of the nitro group position on the aryl ring of the aryl sulfenyl chloride is observed. A computational study at the B3LYP level shows that this difference in behavior is due to the through-space nonbonded S...O interaction in the o-nitrophenyl sulfenyl chloride.
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Affiliation(s)
- Chang Ji
- Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, Canada N1G 2W1
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41
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Pogocki D, Serdiuk K, Schöneich C. Computational Characterization of Sulfur−Oxygen Three-Electron-Bonded Radicals in Methionine and Methionine-Containing Peptides: Important Intermediates in One-Electron Oxidation Processes. J Phys Chem A 2003. [DOI: 10.1021/jp034811b] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dariusz Pogocki
- Department of Pharmaceutical Chemistry, University of Kansas, 2095 Constant Avenue, Lawrence, Kansas 66047, Institute of Chemistry, Pedagogical University, Armii Krajowej 13/15, 42-200 Czȩstochowa, Poland, and Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland
| | - Katarzyna Serdiuk
- Department of Pharmaceutical Chemistry, University of Kansas, 2095 Constant Avenue, Lawrence, Kansas 66047, Institute of Chemistry, Pedagogical University, Armii Krajowej 13/15, 42-200 Czȩstochowa, Poland, and Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland
| | - Christian Schöneich
- Department of Pharmaceutical Chemistry, University of Kansas, 2095 Constant Avenue, Lawrence, Kansas 66047, Institute of Chemistry, Pedagogical University, Armii Krajowej 13/15, 42-200 Czȩstochowa, Poland, and Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland
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42
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Intramolecular noncovalent force in cyclic amidines: nonbonded interaction between carbon atoms and heteroatoms. Chem Phys Lett 2003. [DOI: 10.1016/s0009-2614(03)00395-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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43
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Kanda Y, Ashizawa T, Kawashima K, Ikeda SI, Tamaoki T. Synthesis and antitumor activity of novel C-8 ester derivatives of leinamycin. Bioorg Med Chem Lett 2003; 13:455-8. [PMID: 12565949 DOI: 10.1016/s0960-894x(02)00949-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A novel series of C-8 ester derivatives of leinamycin are described. Condensation of N-substituted amino acids or carboxylic acids containing polyether moiety with leinamycin resulted in the C-8 ester derivatives with good antitumor activity in several experimental models. Among these derivatives, compound 4e, which has five ethylene glycol ether units in the C-8 acyl group, showed potent antitumor activity against human tumor xenograft. Combination with the modification of the dithiolanone moiety was applied to these C-8 ester derivatives and some of them also showed good antitumor activity.
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Affiliation(s)
- Yutaka Kanda
- Pharmaceutical Research Institute, Kyowa Hakko Kogyo Co., Ltd., 1188 Shimotogari, Nagaizumi-cho, Sunto-gun, Shizuoka 411-8731, Japan.
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Brzostowska EM, Greer A. The role of amine in the mechanism of pentathiepin (polysulfur) antitumor agents. J Am Chem Soc 2003; 125:396-404. [PMID: 12517151 DOI: 10.1021/ja027416s] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A computational and experimental study is presented, which provides the first evidence that amine has an opportunity to engage in bonding with pentathiepin to promote its decomposition. The study provides mechanistic insight into the process that gives rise to pentathiepin biological activity. Primary or secondary amine will allow for an intramolecular addition to the pentathiepin ring at the nearest sulfur (S1). In contrast, tertiary amine adds reversibly to S1, because nitrogen cannot lose its positive charge by deprotonation. This precludes the amine promotion step. An energetically low-lying process is characterized, corresponding to S3-loss triggered by nucleophilic activation with a primary or secondary amine. Pentathiepin desulfurization via S3-unit transfer is supported by a trapping study with norbornene. That the amine may confer an enhanced reactivity in the natural products varacin, 1, and lissoclinotoxin A, 2, adds to the understanding of the pathway for pentathiepin activation and may provide new design concepts that have potential applications for this class of biocides.
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Affiliation(s)
- Edyta M Brzostowska
- Department of Chemistry, Graduate School and University Center and The City University of New York (CUNY), Brooklyn College, New York 11210, USA
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45
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Iwaoka M, Takemoto S, Okada M, Tomoda S. Weak Nonbonded S···X (X = O, N, and S) Interactions in Proteins. Statistical and Theoretical Studies. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2002. [DOI: 10.1246/bcsj.75.1611] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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46
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Pogocki D, Schöneich C. Computational characterization of sulfur-cxygen-bonded sulfuranyl radicals derived from alkyl- and (carboxyalkyl)thiopropionic acids: evidence for sigma-type radicals. J Org Chem 2002; 67:1526-35. [PMID: 11871883 DOI: 10.1021/jo010894l] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Sulfide radical cations are known to stabilize via sulfur-oxygen bond formation with carboxylic acid functions. However, structural information on the resulting sulfuranyl radicals has so far only been provided by ESR spectroscopy for more stable, aromatic-substituted species, while the rather short-lived aliphatic sulfuranyl radicals have largely been characterized by time-resolved UV spectroscopy only. Therefore, we have obtained theoretical structural information on S-O-bonded sulfuranyl radicals from three model compounds, tert-butyl 2-(methylthio)peroxybenzoate, 3-methylthiopropionic acid, and 3,3'-thiodipropionic acid, using density functional theory, semiempirical, and molecular mechanics methods. All S-O-bonded species exist predominantly as three-electron-bonded sigma-radicals with an estimated heterolytic bond dissociation energy of the S therefore O bond on the order of 23-27 kcal mol(-1). Characteristic optical absorption bands, vibrational frequencies, and hyperfine coupling tensors are evaluated to facilitate the identification of such radicals by time-resolved UV, IR, and ESR spectroscopy.
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Affiliation(s)
- Dariusz Pogocki
- Department of Pharmaceutical Chemistry, University of Kansas, 2095 Constant Avenue, Lawrence, Kansas 66047, USA
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47
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Nagao Y, Iimori H, Goto S, Hirata T, Sano S, Chuman H, Shiro M. Remarkable discrepancy in the predominant structures of acyl(or thioacyl)aminothiadiazoles, acyl(or thioacyl)aminooxadiazoles and related compounds having the potential for rotational, geometrical and tautomeric isomerism. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)00080-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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48
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Perrin CL, Kim YJ, Kuperman J. Structures of 1,6-Dioxa-6aλ4-thiapentalene and of 1,6,6aλ4-Trithiapentalene: Cs or C2v Symmetry? J Phys Chem A 2001. [DOI: 10.1021/jp013660e] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Charles L. Perrin
- Department of Chemistry, University of CaliforniaSan Diego, La Jolla, California 92093-0358
| | - Yeong-Joon Kim
- Department of Chemistry, University of CaliforniaSan Diego, La Jolla, California 92093-0358
| | - Joshua Kuperman
- Department of Chemistry, University of CaliforniaSan Diego, La Jolla, California 92093-0358
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49
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Iwaoka M, Takemoto S, Okada M, Tomoda S. Statistical Characterization of Nonbonded S···O Interactions in Proteins. CHEM LETT 2001. [DOI: 10.1246/cl.2001.132] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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50
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Rauhut G. Recent Advances in Computing Heteroatom-Rich Five- and Six-Membered Ring Systems. ADVANCES IN HETEROCYCLIC CHEMISTRY 2001. [DOI: 10.1016/s0065-2725(01)81010-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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