Patent ID: 8110585
Filing Date: 2012-02-07
Classification: A61P,C07D

Abstract:
1. A compound represented by the formula: wherein R R Xa and Xb are each a carbon atom, a nitrogen atom, an oxygen atom or a sulfur atom, Xc and Xd are each a carbon atom or a nitrogen atom, m is 0, 1 or 2, n is 1, 2 or 3, ring A is a 5-membered ring optionally having substituent(s), ring B is a 6-membered ring optionally having substituent(s), ring C is a 3- to 5-membered ring optionally having substituent(s), and provided that when Xa, Xc and Xd are carbon atoms, then Xb is a nitrogen atom or a sulfur atom, or a salt thereof.