Patent ID: 11453632

Abstract:
Provided is a novel compound having a selective activating effect on ERβ. The present invention provides a compound represented by the following formula (1) wherein R1 represents a cycloalkyl group having 3 to 8 carbon atoms, an alkenyl group having 2 to 6 carbon atoms and optionally substituted with a halogen atom, a 5-membered nitrogen-containing heteroaryl group, a 4- to 6-membered cyclic amino group, an alkanoylamino group having 2 to 6 carbon atoms and optionally substituted with a halogen atom, a 1-trifluoromethyl-1-hydroxymethyl group, or a 1-methylpropyl group; R2 to R5 are the same or different and each represent a hydrogen atom or a fluorine atom; and R6 represents a hydrogen atom or an alkanoyl group having 2 to 5 carbon atoms, or a salt thereof.