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; R6 is hydrogen or optionally substituted C1-C3 alkyl; P represents hydrogen and U represents a radical of formula (IA); or U represents hydrogen and P represents a radical of formula -A-(CH2)z—X1-L1-Y—NH—CHR1R2 wherein A represents an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic radical having 5-13 ring members; z, Y, L1, and X1 are as defined in the specification; R1 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 R2 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关节炎和
COPD方面具有实用价值:其中:G为—N═或—CH═;D为具有5-13个环成员的可选取代的二价单环或双环芳基或杂芳基基团;R6为
氢或可选取代的C1-C3烷基;P代表
氢,U代表公式(IA)的基团;或者U代表
氢,P代表公式-A-(
CH2)z—X1-L1-Y—NH—CHR1R2的基团,其中A代表可选取代的具有5-13个环成员的二价单环或双环
碳环或杂环基团;z、Y、L1和X1如说明书中所定义;R1为
羧酸基(—COOH),或者是通过一个或多个细胞内
酯酶酶
水解成
羧酸基的
酯基团;R2是
天然或非
天然α
氨基酸的侧链。