Compounds of formula (I) are inhibitors of p38 MAP kinase, and are therefore of utility in the treatment of, inter alia, inflammatory conditions including rheumatoid arthritis and COPD:
wherein: G is —N═ or —CH═; D is an optionally substituted divalent mono- or bi-cyclic aryl or heteroaryl radical having 5-13 ring members; R
6
is hydrogen or optionally substituted C
1
-C
3
alkyl; P represents hydrogen and U represents a radical of formula (IA); or U represents hydrogen and P represents a radical of formula -A-(CH
2
), —X
1
-L
1
-Y—NH—CHR
1
R
2
wherein A represents an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic radical having 5-13 ring members; z, Y, L
1
, and X
1
are as defined in the specification; R
1
is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular esterase enzymes to a carboxylic acid group; and R
2
is the side chain of a natural or non-natural alpha amino acid.
式(I)的化合物是p38
MAP激酶的
抑制剂,因此在治疗炎症性疾病,包括类风湿性关节炎和
COPD方面有用。其中:G是—N═或—CH═;D是一个可选取代的二价单环或双环芳基或杂环基,具有5-13个环成员;R6是
氢或可选取代的C1-C3烷基;P代表
氢,U代表公式(IA)的基团;或U代表
氢,P代表公式-A-(
CH2)-、—X1-L1-Y—NH—CHR1R2的基团,其中A代表可选取代的二价单环或双环
碳环或杂环基,具有5-13个环成员;z、Y、L1和X1如规范中所定义;R1是
羧酸基(—COOH),或可由一个或多个细胞内
酯酶酶
水解为
羧酸基的
酯基;R2是
天然或非
天然α
氨基酸的侧链。