The present invention provides a compound which is: tert-butyl N-[2-4-[6-amino-5- (2,4-difluorobenzoyl)-2-oxopyridin-1(2H)-yl]-3,5-difluorophenyl}ethyl)-L-alaninate or a salt, hydrate or solvate thereof. The present invention also provides a pharmaceutical composition comprising the compound together with one or more pharmaceutically acceptable carriers and/or excipients. The compound and composition are useful for inhibiting the activity of a p38 MAP kinase enzyme. As such they may be used in the treatment of a autoimmune or inflammatory disease, or a cell proliferative disease. In addition, the invention provides an acid produced by hydrolysis of the ester group of the compound of the invention. The acid is N-[2-4-[6-amino-5-(2,4-difluorobenzoyl)-2- oxopyridin-1(2H)-yl]-3,5-difluorophenyl}ethyl)-L-alanine.
本发明提供一种化合物,即:叔丁基N-[2-4-[6-
氨基-5-(
2,4-二氟苯甲酰)-2-氧代
吡啶-1(2H)-基]-3,5-二
氟苯基}乙基)-
L-丙氨酸酯或其盐、
水合物或溶剂合物。本发明还提供了包括该化合物及一种或多种药用可接受的载体和/或赋形剂的药物组合物。该化合物和组合物可用于抑制p38
MAP激酶酶的活性。因此,它们可用于治疗自身免疫或炎症性疾病,或细胞增殖性疾病。此外,该发明提供了通过
水解该化合物的酯基而产生的酸。该酸为N-[2-4-[6-
氨基-5-(
2,4-二氟苯甲酰)-2-氧代
吡啶-1(2H)-基]-3,5-二
氟苯基}乙基)-
L-丙氨酸。