A compound having CRTH2 receptor antagonism, represented by the following formula (I). The compound is useful for the treatment of allergic diseases having a relation to eosinophils and the like.
A compound of the formula (I):
wherein
a group represented by the formula:
is a group represented by the formula:
and the like, R
1
is carboxy and the like, R
3
is —(CH
2
)n-N(—Y)—SO
2
—Ar and the like, the other symbols are as defined in claim
1.
The present invention relates to compounds and compositions for treating diseases associated with cysteine protease activity. The compounds are reversible inhibitors of cysteine proteases, including cathepsins B, K, C, F, H, L, O, S, W and X. Of particular interest are diseases associated with Cathepsin K.