Condensed thiazine derivatives their production and use
申请人:TAKEDA CHEMICAL INDUSTRIES, LTD.
公开号:EP0795557A1
公开(公告)日:1997-09-17
This invention relates to a compound of the following formula or a salt thereof, their production and use.
wherein R1 and R2 independently represent hydrogen, a group bonding through a carbon atom, a group bonding through a nitrogen atom, a group bonding through an oxygen atom, or a group bonding through a sulfur atom; R3 represents hydrogen, halogen, a group bonding through a carbon atom, a group bonding through a nitrogen atom, a group bonding through an oxygen atom, or a group bonding through a sulfur atom; W represents an oxygen atom or sulfur atom; A represents a group forming a nitrogen-containing condensed ring at the 3,4- of a 1,4-thiazine ring; R1 and R2 may be combined to form a bivalent hydrocarbon group interrupted by one or more hetero atoms or an alkylene group.
The above compound or a salt thereof not only has Th1 and Th2 cell function modulating activity but has splenocyte proliferation response, interleukin-5 production, and interferon-gamma production inhibitory activity and finds application as an effective therapeutic and/or prophylactic agent for allergic or autoimmune diseases or as an effective therapeutic and/or prophylactic agent for graft rejection or graft-vs-host disease.