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.
Described herein are compounds that are useful as protein kinase inhibitors having the formula:
wherein Z
1
and Z
2
are each independently nitrogen or CH and Ring A, T
m
R
1
, QR
2
, U
n
R
3
, and Sp are as described in the specification. The compounds are especially useful as inhibitors of ERK2 and for treating diseases in mammals that are alleviated by a protein kinase inhibitor, particularly diseases such as cancer, inflammatory disorders, restenosis, diabetes, and cardiovascular disease.
The application is directed to compounds of Formula (I) or (IA) and pharmaceutically acceptable salts and solvates thereof, wherein R
1
R
2
,
R3
and G are defined as set forth in the specification. The invention is also directed to use of compounds of Formula (I) or(IA), and the pharmaceutically acceptable salts and solvates thereof, to treat disorders responsive to the modulation of one or more opioid receptors, or as synthetic intermediates. Certain compounds of the present invention are especially useful for treating pain.