7C7O:
reference: Lead optimization of 8-(methylamino)-2-oxo-1,2-dihydroquinolines as bacterial type II topoisomerase inhibitors., Ushiyama F, Amada H, Mihara Y, Takeuchi T, Tanaka-Yamamoto N, Mima M, Kamitani M, Wada R, Tamura Y, Endo M, Masuko A, Takata I, Hitaka K, Sugiyama H, Ohtake N, Bioorg Med Chem. 2020 Sep 22;28(22):115776. doi: 10.1016/j.bmc.2020.115776. PMID: 33032189

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