申请人:——
公开号:US20020013369A1
公开(公告)日:2002-01-31
Disclosed are the compounds of formula I
1
wherein R is methyl or ethyl; R
1
is chloro or fluoro; R
2
is hydrogen or fluoro; R
3
is hydrogen, fluoro, chloro, methyl, ethyl, methoxy, ethoxy or hydroxy; R
4
is hydrogen or fluoro; and R
5
is chloro, fluoro, trifluoromethyl or methyl; and pharmaceutically acceptable salts thereof, as selective COX-2 cyclooxygenase inhibitors; and pharmaceutically acceptable prodrug esters thereof.
本发明涉及一种化合物,其化学式为I1,其中R为甲基或乙基;R1为氯或氟;R2为氢或氟;R3为氢、氟、氯、甲基、乙基、甲氧基、乙氧基或羟基;R4为氢或氟;R5为氯、氟、三氟甲基或甲基;以及其药学上可接受的盐,作为选择性COX-2环氧化酶抑制剂;以及其药学上可接受的前药酯。