MIC data for selected strains for synthesized variations (3–10, 12, 13, 15) and for reference compounds marked with* (2, 11, 14).

^aDSM 1116.

^bBW25113.

^cTA100.

^dDSM 10.

^eDSM1790.

^fDSM 750,

^gGyrase inhibition at a constant concentration of 45 nM of compounds 1 and 2−8: ↑, for stronger inhibition; ≈, for equal inhibition; ↓, for diminished inhibition compared to albicidin 1 (see ESI Fig. S1).