| abstract |
Benzofuran derivatives represented by formula (I) or salts thereof: <CHEM> (wherein R<1> represents a phenyl group or a hydrogen atom; k is 0 or 1; each of m, n, o, p, and q is an integer of 0 to 5; and each of R<2> and R<3> represents a hydrogen atom or a hydroxyl group, or R<2> and R<3> together represent an oxygen atom, with proviso that k, q, and m, or n, o, and p are not simultaneously 0). <??>The compounds inhibit phosphorylation of STAT 6 and are useful in the treatment or prevention of allergic diseases. |