Problem to be solved: to provide a novel compound having selective activation action for ER β.(1)R1 is a cycloalkyl group having 3 to 8 carbon atomsAlkenyl groups of 2 to 6 carbon atoms that may be substituted by halogen atoms5 percent nitrogen containing Lille4 to 6 membered cyclic amino groupsAn alkanoyl amino group having 2 to 6 carbon atoms that may be substituted by halogen atoms1-trifluoromethyl-1-hydroxymethyl groupOr 1-methylpropyl groupR2 to R5 represent hydrogen or fluorine atoms that may be the same or differentR6 indicates an atomic hydrogen or an alkanoyl group having 2 to 5 carbon atoms.Compounds or salts thereof.No selection
