The present invention aims to provide a novel compound which has CGRP receptor antagonist activity and which is useful for the treatment of various diseases mediated by CGRP receptors. That is, the present invention relates to the pyrrolidine derivatives represented by the following formula (I) or a pharmaceutically acceptable salt thereof. In the formulae, W is ring, X is a carbon atom or the like, Y1 to Y4 are carbon atoms or the like, and R1 to R7 is alkyl or the like. The compounds of the present invention or a pharmaceutically acceptable salt thereof have an excellent CGRP receptor antagonist activity, and thus are useful as agents for the treatment of various diseases mediated by CGRP receptors.
本发明旨在提供一种新型化合物,该化合物具有 CGRP 受体拮抗剂活性,可用于治疗由 CGRP 受体介导的各种疾病。也就是说,本发明涉及下式(I)所代表的
吡咯烷衍
生物或其药学上可接受的盐。式中,W为环,X为碳原子或类似物,Y1至Y4为碳原子或类似物,R1至R7为烷基或类似物。本发明的化合物或其药学上可接受的盐具有优异的 CGRP 受体拮抗剂活性,因此可用作治疗由 CGRP 受体介导的各种疾病的药物。