Phenylamino-substituted tricyclic derivatives for treatment of hyperproliferative diseases
申请人:Pfizer Inc.
公开号:US06335344B1
公开(公告)日:2002-01-01
The present invention relates to compounds of the formula (I)
and to pharmaceutically acceptable salts thereof, wherein R1-R4 and Z are as defined herein. The compounds of formula (I) are useful as antiproliferative agents. The invention further relates to pharmaceutical compositions and methods of treating hyperproliferative disorders such as cancer, using such compounds.