Table 3.
Inhibition of CYP3A4.
Cmpd | IC50a | % TDIb | kobsc | kobs ratiod |
---|---|---|---|---|
4 | 0.34 | 66 | 0.0921 | 6.01 |
5 | > 50 | 4 | 0.0023 | 0.11 |
8 | > 50 | 3 | 0.0003 | 0.01 |
10 | 1.1 | < 1 | 0.0028 | 0.15 |
11 | 0.04 | 36 | 0.0386 | 1.78 |
inhibition of midazolam turnover, μM
normalized percent activity remaining (12 min preincubation with cmpd at 10 μM)
inactivation rate, min−1
ratio of inactivation rates between compound and ethynylestradiol (< 1 considered low TDI potential).