Table 2. S1R and S2R Binding Assays for Targeted Compounds.
Ki (nM) ± SDa |
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ID | R1 | R2 | X | n | m | S1R | S2R | KiS2R/KiS1R |
9a | NO2 | H | 0 | 1 | 0.76 ± 0.17 | 12 ± 2.9 | 15.8 | |
9b | OCH3 | H | 0 | 1 | 6.2 ± 1.8 | 12 ± 1.2 | 1.9 | |
9c | COCH3 | H | 0 | 1 | 3.0 ± 0.46 | 10 ± 1.7 | 3.3 | |
9d | CN | H | 0 | 1 | 3.5 ± 0.7 | 2.6 ± 0.6 | 0.7 | |
15a | Cl | Cl | CO | 1 | 1 | 7.5 ± 1.0 | 24 ± 3.6 | 3.2 |
15b | OCH3 | OCH3 | CO | 1 | 1 | 435 ± 35 | 736 ± 267 | 1.7 |
15d | H | H | CO | 0 | 1 | 209 ± 18 | 57 ± 3.3 | 0.3 |
15e | H | H | CO | 1 | 1 | 79 ± 3.8 | 99 ± 16 | 1.3 |
16a | Cl | Cl | CH2 | 1 | 1 | 4.2 ± 0.8 | 11 ± 2.1 | 2.6 |
16b | OCH3 | OCH3 | CH2 | 1 | 1 | 25 ± 5.3 | 23 ± 3.5 | 0.9 |
Each value is the mean ± SD of at least two experiments performed in duplicate.