“…3 (6), moiramide B, moxifloxacin, polymerase IIIC inhibitor compound no. 1 (24), and streptovaricin (Bayer); ramoplanin (Biosearch Italia, Geranzano, Italy); trovafloxacin (Pfizer); and actinomycin D, actinonin, azaserine, azithromycin, cefoxitin, cerulenin, chloramphenicol, doxycycline, erythromycin, ethidium bromide, fusidic acid, gentamicin, kanamycin, mersacidin, methicillin, monensin, nalidixic acid, netropsin, N-ethyl maleimide, nisin, novobiocin, mitomycin C, oxacillin, polymyxin B, puromycin, triclosan, trimethoprim, and tunicamycin (Sigma-Aldrich). The Bayer collection of pure natural products consisted of approximately 14,000 individual substances which were each characterized by nuclear magnetic resonance spectroscopy.…”