PYRIMIDINE DERIVATIVES AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM

摘要

The present invention is directed to a pyrimidine derivative of the following formula (1) or a salt of the derivative: Äwherein R<1> represents a lower alkyl group; each of R<2> and R<3> represents H, alkyl, or alkoxy; each of R<4> and R<5> represents H or alkyl; R<6> represents alkyl, -OR<7>, or -NR<8>R<9>; and n is a number between 0 and 3 inclusive (wherein each of R<7>, R<8>, and R<9> represents H, alkyl, aryl, aralkyl, amino, a heterocyclic ring, etc.)Ü, as well as to a medicine containing the derivative or salt as the active ingredient. The present compounds exhibit strong binding inhibitory activity against endothelin having potent vasoconstrictive effect and cell proliferation effect. Therefore, the compounds are effective as remedies for various diseases including circulatory diseases.