Table 3. Inhibition of CYP11B1, CYP11B2, CYP17, and CYP19 by Compounds 33−36.

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Mean value of at least three experiments. The deviations were within <±25%.
Hamster fibroblasts expressing human CYP11B1 or CYP11B2; substrate 11-deoxycorticosterone, 100 nM.
sf: IC50 (CYP11B2)/IC50 (CYP11B1).
Described in ref (36).
MTP, metyrapone; ETO, etomidate; and KTZ, ketoconazole.
E. coli expressing human CYP17; substrate progesterone, 25 μM; inhibitor concentration, 2.0 μM.
Human placental CYP19; substrate androstenedione, 500 nM; inhibitor concentration, 500 nM.
