Catalytic hydroxylation of steroids by cytochrome P-450 mimics. Hydroxylation at C-9 with novel catalysts and steroid substrates

Double binding of a steroid substrate to our previously described mimic of the cytochrome P-450 enzymes hydroxylates carbon 9 of the steroid, but with a second significant product. The geometry has been adjusted with new catalysts that show high selectivity and excellent turnover for the C-9 hydroxylation.