1,1,2-TRIARYL-1-ALKENE DERIVATIVES

摘要

This invention provides a 1,1,2-triaryl-1-alkene-derivative of the formula (I) wherein R1 and R2 each represent a lower alkyl group, one of R3 and R4 is a lower alkyl group and the other is a group of the formula (in which R5 is a hydrogen atom, a lower alkyl group, a lower alkoxy group, a halogen atom or -OPO(OH)2 group); or a pharmacologically acceptable salt thereof, its preparation and agents containing the derivative for treating mammary cancer and anovulatory infertility.