Ad. Abell et al., PREPARATION AND BIOLOGICAL-ACTIVITY OF TRICYCLIC NONSTEROIDAL INHIBITORS OF HUMAN STEROID 5-ALPHA-REDUCTASE, Journal of the Chemical Society. Perkin transactions. I, (11), 1997, pp. 1663-1667
The synthesis and in vitro inhibitory studies against human types 1 an
d 2 steroid 5 alpha-reductase of a series of 9,10-dihydrophenanthrene-
2-carboxylic acids is reported, A (4-carboxy)phenyl substituent at C-7
provides a compound with activity against both isozymes. The structur
al features responsible for activity are discussed.