Compounds of the formula (I) below, or pharmacologically acceptable salts, esters or other derivatives thereof:
1
wherein A is furan, thiophene, pyrazole, imidazole, isoxazole or isothiazole;
R
1
is a substituted or unsubstituted aryl or a substituted or unsubstituted heteroaryl; R
2
is a substituted or unsubstituted heteroaryl; and R
3
is a bicyclic amino group; provided that the substituents R
1
and R
2
are bonded to the two atoms of the cyclic group A which are adjacent to the atom of the cyclic group A to which the substituent R
2
is bonded. The compounds inhibit the production of inflammatory cytokines.