A compound of formula (I), wherein R.sup.1 and R.sup.2 are independently selected from chloro, fluoro, bromo, C.sub.1-6 alkyl, C.sub.1-6 alkoxy or C.sub.1-6 haloalkyl provided that both R.sup.1 and R.sup.2 are not fluoro; R.sup.3 and R.sup.4 are independently selected from hydrogen and C.sub.1-6 alkyl, and pharmaceutically acceptable salts, solvates or physiologically functional derivatives thereof, their use in medicine, particularly the phrophylaxis or treatment of conditions associated with inflammation, arthritis, or pain, pharmaceutical compositions comprising them, and processes for their preparation are disclosed. ##STR1##
                            化合物的
化学式(I),其中R.sup.1和R.sup.2分别从
氯、
氟、
溴、C.sub.1-6烷基、C.sub.1-6烷氧基或C.sub.1-6卤代烷基中独立选择,但要求R.sup.1和R.sup.2都不是
氟;R.sup.3和R.sup.4分别从氢和C.sub.1-6烷基中独立选择,以及其在医学上的应用,特别是预防或治疗与炎症、关节炎或疼痛有关的疾病,包括它们的药物组合物及其制备方法,以及其药学上可接受的盐、溶剂或生理学上的功能衍
生物。 ##STR1##