| abstract |
The present invention relates to a compound represented by the general formula (I): n n nwherein m 1 and m 2 are 1, 2, or 3; n 1 and n 2 are 0 or 1; i is an integer of any of 1 to m 1 ; j is an integer of 1 to m 2 ; R is aryl, heteroaryl, or cycloalkyl any of which may be substituted; R ai and R ai ′ is hydrogen atom, etc. and R bj and R bj ′ is hydrogen atom, etc.; R c , R d , and R e are hydrogen atom, etc; X 1 is CH, CX 1a , or N; X 2 is CH, N, etc.; X 3 is CH, N, etc.; X 4 is CH or N; Y 1 , Y 2 , and Y 3 are each independently CH or N; Z 1 and Z 2 are each independently CH or N; W is a 5-membered aromatic heterocyclic group such as pyrazolyl, thiazolyl, etc., or a pharmaceutically acceptable salt or ester thereof; a pharmaceutical composition or antitumor agent containing the same; and combinations of the antitumor agent with other antitumor agent(s). |