YAKHAK HOEJI (약학회지)
- Volume 33 Issue 6
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- Pages.350-360
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- 1989
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- 0377-9556(pISSN)
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- 2383-9457(eISSN)
Conformation and Antibacterial Activity on Staphylococcus aureus of Some Benzenesulfonyl Analogues
Benzenesulfonyl 유도체들의 구조와 Staphylococcus aureus에 대한 항균력
- Kim, Bo-Soo (Department of Pharmacy, Chungbuk National University) ;
- Lee, Sung-Hee (Department of Pharmacy, Chungbuk National University) ;
- Chung, Uoo-Tae (Department of Pharmacy, Chungbuk National University) ;
- Kang, Young-Kee (Department of Chemistry, Chungbuk National University)
- Published : 1989.12.28
Abstract
The conformation and activity of the four benzenesulfonyl analogues of 4-aminobenzene-sulfonamide, 4-aminobenzenesulfonic acid, 4-methylbenzenesulfonamide, and 4-methylbenzenesulfonic acid with antibacterial activity on Staphylococcus aureus were studied using an empirical potential function (ECEPP/2) and the hydration shell model. The conformational energies were minimized from the starting conformations which included possible combinations of torsion angles in each molecule. To understand the hydration effect on the conformation of the molecule in aqueous solution, the hydration free energy of each group was calculated and compared each other. The conformational entropies of low-free-energy coformation of benzenesulfonly analogues were computed by a harmonic approximation. From the correlation of lowest-free-energy conformation of each compound and its antibacterial activity, it was found that the hydration of sulfonyl groups and the substituents are the decisive factors to show antibacterial activities.