Quinoline derivatives and pharmaceutical composition containing them
申请人:Takeda Chemical Industries, Ltd.
公开号:US05641788A1
公开(公告)日:1997-06-24
The present invention provides a novel quinoline derivative useful as an anti-inflammatory agent, particularly an agent for treating arthritis, or a salt thereof. The present invention also provides a composition, particularly an anti-inflammatory composition for pharmaceutical use, comprising the novel quinoline compound of formula (I): ##STR1## wherein G is an acyl group, optionally protected hydroxyalkyl group, amidated carboxyl group or halogen atom; X is an oxygen atom, optionally oxidized sulfur atom or --(CH.sub.2).sub.q -- in which q is an integer of 0 to 5; R is an optionally substituted amino group or optionally substituted heterocyclic group; each of the ring A and ring B may optionally be substituted; and k is 0 or 1.