NOVEL AMINOPYRIDINE DERIVATIVES HAVING AURORA A SELECTIVE INHIBITORY ACTION

摘要

The present invention relates to a compound of general formula I: wherein: R1 is a hydrogen atom, F, CN, etc.; R2 is O, S, SO, SO2, etc.; R3 is a phenyl which may be substituted; X2 is CH, N, etc.; W is the following residue: wherein: W1, W2, and W3 each independently CH, N, etc., or a pharmaceutically acceptable salt or ester thereof.