The present invention relates to compounds of formula (I) or a pharmaceutically acceptable acid addition salt thereof, where; X is -C(R4)= or -N=; Ar is phenyl, substituted phenyl, heterocycle, or substituted heterocycle; R1 and R2 are independantly hydrogen or C1-C3 alkyl; R3 is hydrogen, fluoro, or methyl; when X is -C(R4)=, R4 is hydrogen, fluoro, or methyl, provided that no more than one of R3 and R4 may be other than hydrogen; and R5 is hydrogen, methyl, or ethyl. The compounds of the present invention are useful for activating 5-HT1F receptors, inhibiting dural protein extravasation, and for the treatment or prevention of migraine in a mammal.
本发明涉及式(I)的化合物或其药用可接受的酸盐,其中:X为-C(R4)=或-N=;Ar为苯基、取代苯基、杂环或取代杂环;R1和R2独立地为氢或C1-C3烷基;R3为氢、
氟或甲基;当X为-C(R4)=时,R4为氢、
氟或甲基,但R3和R4中不超过一个可以是氢以外的其他基团;R5为氢、甲基或乙基。本发明的化合物可用于激活5-HT1F受体,抑制硬脑膜蛋白外渗,以及用于治疗或预防哺乳动物的偏头痛。