Table 1. SAR of 5-Benzyl-Substituted Bicyclic Coresa.
compd | W | X | Y | Z | hS1P1 RI EC50 (μM) (% efficacy) | hS1P3 Ca2+ EC50 (μM) (% efficacy) |
---|---|---|---|---|---|---|
3 | O | C | CH | C | 0.057 (96) | 1.73 (42) |
4 | O | C | N | C | 0.325 (105) | 0.354 (77) |
5 | N | C | S | C | 0.221 (84) | 3.47 (50) |
6 | N | C | NH | C | >6.25 | >25 |
7 | N | C | CH | N | 6.72 (115) | >25 |
8 | N | N | CH | C | 2.89 (53) | 1.11 (43) |
Data represent an average of at least two determinations. Percent efficacy is reported relative to 1.00 μM 9 and 0.200 μM S1P for hS1P1 RI and hS1P3 Ca2+ assays, respectively. (S1P demonstrates 91% efficacy relative to 1.00 μM 9 in hS1P1 RI studies.) >[Highest concentration tested] is reported for compounds that do not achieve >10% of control activity (1.00 μM 9 or 0.200 μM S1P).