| abstract |
Compounds represented by general formula (I) or salts thereof, wherein n is an integer of 2 or 3; R represents a straight-chain or branched saturated alkyl group having 4 or 5 carbon atoms, a cyclopentyl group, a cyclohexyl group or the like; Y represents a hydroxyl or amino group; A represents a hydrogen atom, a hydroxyl, methoxy, nitro group or the like; Q represents a hydrogen atom or a hydroxyl or methoxy group. They can be formulated to give pharmaceutical compositions that are effective as prophylactic or therapeuti c agents for allergic diseases associated with IgE production inhibitors or Ig E antibodies. |