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Short Paper | Regular issue | Vol 92, No. 6, 2016, pp.1111-1120
Published online, 5th April, 2016
DOI: 10.3987/COM-16-13453
Synthesis and Antibacterial Evaluation of Some New 5-Substituted Hydantoins and Novel Twin-Drug Type Derivatives

Makoto Furutachi, Fumiko Fujisaki, Reika Tsuru, Ayumi Ejima, Toshiaki Gondo, Saho Goto, Miki Ito, Maki Nakamura, Hatsumi Aki, Nobuhiro Kashige, Fumio Miake, and Kunihiro Sumoto*

*Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan


We report the preparation of new oxygen analogues 2 of twin-drug type bivalent mid-size lead molecule 1 and related single-drug type hydantoin derivatives 3. The new twin-drug type oxygen analogues (2a and 2b) also showed significant antibacterial activity against a Gram-positive strain (S. aureus). A comparison of the two types of twin-drug type mid-size compounds 1 and 2 showed that the original lead 1 had a higher level of antibacterial activity against a Gram-positive strain (S. aureus) than those of the compounds (2a and 2b). We also report the results of antibacterial evaluation of prepared compounds and the investigated structure-activity relationships of these molecules.