| abstract |
Objects of the present invention are to create compounds having urea structure as basic structure and having a sulfur atom and an amide bond in side chains and to find pharmacological effects thereof, particularly TNF-α production inhibitory effects. n The present invention provides compounds represented by the following formula [I] wherein R 1 is H, alkyl, aromatic, R A —CO—, R C —S—or the formula [II]; R 2 , R 3 and R 4 are H, alkyl, alkenyl, cycloalkyl, cycloalkenyl or aromatic; R 5 and R 6 are H, alkyl, alkenyl, cycloalkyl, cycloalkenyl or aromatic; R 5 and R 6 can together form a nonaromatic heterocyclic ring; R7 is H, alkyl, cycloalkyl, hydroxy, mercapto, phenyl, R B —O—, R C —S—, R D —COS—, R E —OCO—, R F —N(R G )— or —CONHOH; and A 1 and A 2 are alkylene. |