Abstract: The present invention relates to compounds of the general formula (Ihb) or pharmaceutically acceptable salts thereof with an acid or a base or a stereoisomer thereof for the prevention and/or treatment of a disease associated with increased cytokine release, wherein Y? is O or NR2?; Z is N or CR2?; X is NR2?, O or S; R2? is H, alkyl, —C(O)NR7, —C(O)Re, cycloalkyl, haloalkyl, hydroxyalkyl, hydroxyalkylamino, alkylamino, heteroaryl, or aryl; R3 is H, methyl, ethyl, methoxy, amine, alkylamine, morpholino, N-methylpiperazine, CF3, or OCF3; R2a is substituted or unsubstituted aryl, benzyl or heteroaryl.