Substituted thiazole derivatives bearing 3-pyridyl groups, process for preparing the same and use thereof
申请人:——
公开号:US20040072876A1
公开(公告)日:2004-04-15
The present invention provides a pharmaceutical composition having a steroid C
17,20
-lyase inhibitory activity, which is useful as a prophylactic or therapeutic agent of prostatism, tumor such as breast cancer and the like, more particularly, a steroid C
17,20
-lyase inhibitor containing a compound represented by the formula:
1
wherein A
1
is an aromatic hydrocarbon group optionally having substituents or a heterocyclic group optionally having substituents, one of A
2
and A
3
is a hydrogen atom, a halogen atom, a C
1-4
aliphatic hydrocarbon group optionally having substituents or an optionally esterified carboxyl group, the other of A
2
and A
3
is an aromatic hydrocarbon group optionally having substituents or a heterocyclic group optionally having substituents, and at least one of A
1
, A
2
and A
3
is a 3-pyridyl group optionally having substituents, or a salt thereof or a prodrug thereof.