Compounds 1 4, with a side chain lacking the carbonyl function O CH 2 n eta 5 C 5 H 4 FeCp, n 1 4 and which show a decreasing affinity for ERalpha ER estrogen receptor with increasing chain length, act as estrogens on MCF 7 cells, and mild cytotoxics on PC 3 prostate cancer cells, with IC 50 values around 10 microM
doxycycline hyclate 100 mg capsule