[1] TUBITAK, Marmara Res Ctr, Dept Chem, TR-41470 Gebze, Kocaeli, Turkey
[2] Gaziosmanpasa Univ, Fac Art & Sci, Dept Chem, TR-60100 Tokat, Turkey
[3] Univ Marmara, Fac Med, Dept Microbiol, Istanbul, Turkey
[4] Univ Illinois, Coll Pharm, Program Collaborat Res Pharmaceut Sci, Chicago, IL 60612 USA