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Martelli A, Manfroni G, Sabbatini P, Barreca ML, Testai L, Novelli M, Sabatini S, Massari S, Tabarrini O, Masiello P, Calderone V, Cecchetti V. 1,4-Benzothiazine ATP-Sensitive Potassium Channel Openers: Modifications at the C-2 and C-6 Positions. J Med Chem 2013; 56:4718-28. [DOI: 10.1021/jm400435a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alma Martelli
- Dipartimento di Farmacia, Università degli Studi di Pisa, Via Bonanno
6, 56126 Pisa, Italy
| | - Giuseppe Manfroni
- Dipartimento di Chimica e Tecnologia
del Farmaco, Università degli Studi di Perugia, Via del Liceo, 1, 06123 Perugia, Italy
| | - Paola Sabbatini
- Dipartimento di Chimica e Tecnologia
del Farmaco, Università degli Studi di Perugia, Via del Liceo, 1, 06123 Perugia, Italy
| | - Maria Letizia Barreca
- Dipartimento di Chimica e Tecnologia
del Farmaco, Università degli Studi di Perugia, Via del Liceo, 1, 06123 Perugia, Italy
| | - Lara Testai
- Dipartimento di Farmacia, Università degli Studi di Pisa, Via Bonanno
6, 56126 Pisa, Italy
| | - Michela Novelli
- Dipartimento
di Ricerca Traslazionale
e delle Nuove Tecnologie in Medicina e Chirurgia, Università degli Studi di Pisa, Via Roma, 55, 56126 Pisa, Italy
| | - Stefano Sabatini
- Dipartimento di Chimica e Tecnologia
del Farmaco, Università degli Studi di Perugia, Via del Liceo, 1, 06123 Perugia, Italy
| | - Serena Massari
- Dipartimento di Chimica e Tecnologia
del Farmaco, Università degli Studi di Perugia, Via del Liceo, 1, 06123 Perugia, Italy
| | - Oriana Tabarrini
- Dipartimento di Chimica e Tecnologia
del Farmaco, Università degli Studi di Perugia, Via del Liceo, 1, 06123 Perugia, Italy
| | - Pellegrino Masiello
- Dipartimento
di Ricerca Traslazionale
e delle Nuove Tecnologie in Medicina e Chirurgia, Università degli Studi di Pisa, Via Roma, 55, 56126 Pisa, Italy
| | - Vincenzo Calderone
- Dipartimento di Farmacia, Università degli Studi di Pisa, Via Bonanno
6, 56126 Pisa, Italy
| | - Violetta Cecchetti
- Dipartimento di Chimica e Tecnologia
del Farmaco, Università degli Studi di Perugia, Via del Liceo, 1, 06123 Perugia, Italy
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Lachenicht S, Fischer A, Schmidt C, Winkler M, Rood A, Lemoine H, Braun M. Synthesis of Modified 4H-1,2,4-Benzothiadiazine-1,1-dioxides and Determination of their Affinity and Selectivity for Different Types of KATPChannels. ChemMedChem 2009; 4:1850-8. [DOI: 10.1002/cmdc.200900261] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Uhrig U, Höltje HD, Mannhold R, Weber H, Lemoine H. Molecular modeling and QSAR studies on K(ATP) channel openers of the benzopyran type. J Mol Graph Model 2002; 21:37-45. [PMID: 12413029 DOI: 10.1016/s1093-3263(02)00107-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The present paper describes our molecular modeling and quantitative structure-activity relationships (QSARs) studies on K(ATP) channel openers (KCOs) of the benzopyran type. In the first part we performed molecular modeling investigations with seven benzopyrans, varied at the C3- and C4-positions, in order to understand which molecular features at these positions are essentially effecting the biological activity. The impact of C6-substitution on biological activity was studied in the second part via HANSCH analysis. For this purpose physicochemical properties (charge distributions, lowest unoccupied molecular orbital (LUMO) energies, desolvation energies, volumes and dipole moments) were calculated for a set of 50 C6-varied benzopyrans. A QSAR equation was developed showing a relationship between the vasodilator activity and the direction of the dipole vector of the ligands. The conclusion can be drawn that a direct interaction between the C6-substituents and the receptor structure is not of primary importance. However, the substitutents influence the orientation of the whole ligand approaching the binding site. An unfavorably oriented ligand cannot bind to the binding site, thus exhibiting weak activity.
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Affiliation(s)
- Ulrike Uhrig
- Institut für Pharmazeutische Chemie, Heinrich-Heine-Universität, Düsseldorf, Germany
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