From: Metabolite proving fungal cleavage of the aromatic core part of a fluoroquinolone antibiotic
 |  | Chemical | Coupling |
---|---|---|---|
Compound | H assignment | shift δ | constant J H, F |
 |  | (ppm) | (Hz) |
PRA | H-2 | 8.92 | Â |
 | H-5 | 7.87 | 14.5 |
F-1 | H-2 | 8.41 | Â |
 | H-5 | 7.96 | 14.8 |
F-2 | H-2 | 9.06 | Â |
 | H-5 | 7.64 |  |
F-5 | H-2 | 8.81 | Â |
F-13 | H-2 | 8.80 | Â |
 | H-5 | 7.08 |  |
 | H-2' | 8.81 |  |