N-SUBSTITUTED PHENYLACETAMIDE DERIVATIVE AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME

摘要

(I) wherein R1 represents a methoxy group, a hydroxyl group or a hydrogen atom; R2 represents a hydrogen atom, a C1-4 alkyl group, a C1-4 alkylcarbonyl group or an arylcarbonyl group; and D represents a group represented by the formula (A), (B) or (C) below. (A) (B) (C) This compound is useful as a therapeutic agent for a pain or inflammation induced by any one of various morbid conditions such as neuropathic pain, rheumatoid arthritis and osteoarthritis.