Nitrogen-containing heterocyclic compounds, their production and use

摘要

A compound of the formula: wherein one of A and D is N and the other is C, or both are N; B is N or C; m is 0-3; R¹, R² and R³ each is (i) H or (ii) a group bound via C, N, O or S; R⁴ is a group bound via C; R⁵ is H or a group bound via C or O; R⁶ is H or a group bound via C; R⁷ is a homo- or hetero-cyclic group which may be substituted; or a salt thereof possesses excellent gonadotropin-releasing hormone antagonizing activity, and is useful as a prophylactic or therapeutic agent for sex hormone-dependent diseases, and so forth.