| abstract |
A compound represented by the general formula (I) or a prodrug or pharmacologically acceptable salt thereof. The compound (I) has an excellent adenosine A2A receptor antagonistic effect, and therefore is useful as a therapeutic or prophylactic agent for a disease associated with an adenosine A2A receptor, particularly movement disorder, depression, anxiety, cognitive disorder, ischemic cerebral disorder, restless legs syndrome or the like. (I) wherein R1 represents a hydrogen atom or a lower alkyl group; R2 represents -NR10R11 or -OR12; and R3, R4, R5 and R6 independently represent a hydrogen atom, a halogen, a lower alkyl group, a halo(lower) alkyl group, a lower alkoxy group, a hydroxyl group or the like. |