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Gogolashvili A, Lomsadze K, Chankvetadze L, Takaishvili N, Peluso P, Dallocchio R, Salgado A, Chankvetadze B. Separation of tetrahydrozoline enantiomers in capillary electrophoresis with cyclodextrin-type chiral selectors and investigation of chiral recognition mechanisms. J Chromatogr A 2021; 1643:462084. [PMID: 33789195 DOI: 10.1016/j.chroma.2021.462084] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/16/2021] [Accepted: 03/19/2021] [Indexed: 12/13/2022]
Abstract
The recognition power and affinity pattern of various cyclodextrins (CD) towards the enantiomers of tetrahydrozoline (THZ) were studied using capillary electrophoresis (CE). As expected, affinity of THZ enantiomers and selectivity of recognition towards CD derivatives was strongly dependent on the cavity size and substituent type and pattern on the CD rims. Not only were the affinity strength and selectivity of recognition affected by the size of the cavity and chemistry of the CDs but also the affinity pattern. Another interesting example of opposite affinity pattern of enantiomers towards α- and β-CD was observed here. In addition, opposite affinity pattern of THZ enantiomers was seen towards β-CD and its acetylated derivatives, while methylation of β-CD did not affect the affinity pattern of THZ enantiomers. In order to get more information about structural mechanisms of the multivariate dependences mentioned above, rotating frame Overhauser enhancement spectroscopy (ROESY) and computation techniques were used. Significant differences between the structure of THZ complexes with different CDs with both methods were encountered. Good correlations between experimentally determined and computed structure of complexes, as well as between computed complex stabilities and enantiomer migration order (EMO) in CE were observed.
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Affiliation(s)
- Ann Gogolashvili
- Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, Tbilisi State University, Chavchavadze Ave 3, Tbilisi 0179, Georgia
| | - Ketevan Lomsadze
- Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, Tbilisi State University, Chavchavadze Ave 3, Tbilisi 0179, Georgia; School of Science and Technology, The University of Georgia, 77a, M. Kostava Str., Tbilisi 0171, Georgia
| | - Lali Chankvetadze
- Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, Tbilisi State University, Chavchavadze Ave 3, Tbilisi 0179, Georgia
| | - Nino Takaishvili
- Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, Tbilisi State University, Chavchavadze Ave 3, Tbilisi 0179, Georgia
| | - Paola Peluso
- Istituto di Chimica Biomolecolare ICB-CNR, Sede secondary a di Sassari, Traversa La Crucca 3, Regione Baldinca, Sassari, Li Punti 07100, Italy
| | - Roberto Dallocchio
- Istituto di Chimica Biomolecolare ICB-CNR, Sede secondary a di Sassari, Traversa La Crucca 3, Regione Baldinca, Sassari, Li Punti 07100, Italy
| | - Antonio Salgado
- NMR Spectroscopy Centre (CERMN), CAI Químicas, Faculty of Pharmacy, University of Alcalá, Alcalá de Henares, Madrid E-28805, Spain
| | - Bezhan Chankvetadze
- Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, Tbilisi State University, Chavchavadze Ave 3, Tbilisi 0179, Georgia.
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Busacca CA, Bartholomeyzik T, Cheekoori S, Grinberg N, Lee H, Ma S, Saha A, Shen S, Senanayake CH. On the Racemization of Chiral Imidazolines. J Org Chem 2008; 73:9756-61. [DOI: 10.1021/jo8024384] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Carl A. Busacca
- Department of Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877
| | - Teresa Bartholomeyzik
- Department of Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877
| | - Sreedhar Cheekoori
- Department of Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877
| | - Nelu Grinberg
- Department of Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877
| | - Heewon Lee
- Department of Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877
| | - Shengli Ma
- Department of Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877
| | - Anjan Saha
- Department of Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877
| | - Sherry Shen
- Department of Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877
| | - Chris H. Senanayake
- Department of Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877
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TheO, O′-dibenzoyl derivative of (R, R)-tartaric acid as a host compound for simple organic ethers. ACTA ACUST UNITED AC 1995. [DOI: 10.1007/bf00707084] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Zelle RE, Hancock AA, Buckner SA, Basha FZ, Tietje K, DeBernardis JF, Meyer MD. Synthesis and pharmacological characterization of ABT-200: a putative novel antidepressant combining potent α-2 antagonism with moderate NE uptake inhibition. Bioorg Med Chem Lett 1994. [DOI: 10.1016/s0960-894x(01)80353-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kim KH, Basha F, Hancock A, DeBernardis JF. Quantitative structure-activity relationships for substituted aminotetralin analogues. II: Inhibition of dopamine uptake. J Pharm Sci 1993; 82:521-5. [PMID: 8360831 DOI: 10.1002/jps.2600820518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Quantitative structure-activity relationships of 44 substituted aminotetralin analogues with regard to dopamine (DA) uptake inhibitory potency are examined in this study. Lipophilic substituents at R3 and hydrophilic substituents at R6 and/or R9 positions, as well as the overall lipophilicity of the molecule contribute toward increasing the inhibitory potency. Unlike with norepinephrine uptake inhibition, little effects are seen from the nitrogen substituent. Among the ring substituents examined, an hydroxy group at the R6 position increases the DA uptake inhibitory potency, whereas a methoxy group at the R7 position decreases it. A comparative quantitative structure-activity relationship study shows that a bromine at the R6 position and/or hydrogen at the R9 position make the compound a better norepinephrine uptake inhibitor than a DA uptake inhibitor, whereas hydrogen at the R6 and/or a substituent larger than a propyl group at the R2 position make the compound a more potent DA uptake inhibitor.
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Affiliation(s)
- K H Kim
- Pharmaceutical Products Division, Abbott Laboratories, Abbott Park, IL 60064
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Kim KH, Basha F, Hancock A, DeBernardis JF. Quantitative structure-activity relationships for substituted aminotetralin analogues. I: Inhibition of norepinephrine uptake. J Pharm Sci 1993; 82:355-61. [PMID: 8468677 DOI: 10.1002/jps.2600820404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Quantitative structure-activity relationships of 57 substituted aminotetralin analogues, an overview of their syntheses, and their pharmacological activity are described in this study. Lipophilic substituents at R3 as well as the overall lipophilicity of the molecule contribute toward increasing the inhibitory potency. An ethyl group is preferred, and a group larger than a propyl is not desirable as a nitrogen substituent. Among the ring substituents examined, an hydroxy group at the R6 position and either an unsubstituted R9 position or a methoxy substituent at the R9 position increase the inhibitory potency, whereas a methoxy group at the R7 position decreases inhibitory potency.
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Affiliation(s)
- K H Kim
- Pharmaceutical Products Division, Abbott Laboratories, Abbott Park, IL 60064
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