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Affinities determined by competitive 19F-R2 filtered NMR experiments.
| Structure | a KI (mM) | SD (mM) | b r2 |
|---|---|---|---|
| 1 | 2.5 | 0.7 | 0.91 |
| 1b | 1.1 | 0.2 | 0.97 |
| 1c | 1.0 | 0.1 | 0.99 |
| 1d | 1.1 | 0.2 | 0.98 |
| 2 | 9.6 | 3.5 | 0.77 |
| 3 | 4.0 | 0.6 | 0.98 |
a KI is determined by non-linear least squares fitting (see SI). b Coefficient of determination for the fitting.
