The present invention provides a compound represented by the formula:
wherein R
1
is an acyl group, R
2
is a hydrocarbon group which may be substituted or the like, R
3
is a hydrocarbon group which may be substituted or the like, R
4
is a hydrocarbon group which may be substituted or the like, n is from 0 to 4, and X is an oxygen atom, a sulfur atom or the like, or a salt thereof. The invention also provides a compound which has a TGR23 antagonist activity and thus is useful for prevention and treatment of cancer.
[1,2,4] Triazolo [1,5, a] pyrimidin-2-ylurea derivative and use thereof
申请人:Masuda Akira
公开号:US20070010515A1
公开(公告)日:2007-01-11
Novel [1,2,4]triazolo[1,5-a]pyrimidine derivative of the general formula (1): (1) its prodrug or a pharmaceutically acceptable salt thereof, which exhibits an antigen presentation inhibiting activity and is useful as a preventive and/or therapeutic agent for immunological rejection and/or graft versus host reaction in organ/bone marrow transplant, autoimmune disease, allergic disease and/or inflammatory disease and also useful as an anticancer drug or as an immunological tolerance inducer for transplanted organ/transplanted bone marrow.