Table 1.
In vitro inhibitory activities of E1-E9 against UT-B (n = 3).
| |||||
|---|---|---|---|---|---|
| Compound | R1 | R2 | R3 | IC50 (μM) 1 | |
| Rat | Mouse | ||||
| 25a | H | H |
|
0.14 | 0.48 |
| E1 | H | H |
|
0.32 | 0.86 |
| E2 | H | H |
|
0.40 | 2.41 |
| E3 | H |
|
H | 0.01 | 0.05 |
| E4 |
|
H | H | 6.46 | >10 |
| E5 | H | H |
|
0.06 | 0.23 |
| E6 | H | OH |
|
0.05 | 0.18 |
| E7 | H | H |
|
0.09 | 0.23 |
| E8 | H | H |
|
0.77 | 2.55 |
| E9 | H | H |
|
1.75 | 4.07 |
1 IC50 is tested with the erythrocyte lysis model. Data are means.