申请人:Astellas Pharma Inc.
公开号:US08106190B2
公开(公告)日:2012-01-31
To provide a novel and excellent agent for treating or preventing nociceptive pain, neuropathic pain, cancer pain, headache, bladder function disorder and the like, based on the inhibitory action on the capsaicin receptor VR1 activation.
The present invention was accomplished by confirming that a benzamide derivative characterized by the possession of a benzene ring in which a single ring is condensed on the nitrogen atom of amido group and possession of a lower alkylamino or an amino group substituted with a ring group at the neighboring position of said amido group has a strong inhibitory action on VR1 activation and excellent pharmacological actions based on this and by finding that it can become an excellent agent for treating or preventing VR1-involved diseases such as nociceptive pain, neuropathic pain, cancer pain, headache, bladder function disorder and the like.
为了提供一种新颖且优秀的药剂,用于治疗或预防嗜痛性疼痛、神经病理性疼痛、癌症疼痛、头痛、膀胱功能障碍等,基于对辣椒素受体VR1激活的抑制作用。本发明通过确认一种苯甲酰胺衍生物,其特征在于其苯环上的单环在酰胺基团的氮原子上凝聚,并具有一个邻位取代环基的较低烷基氨基或氨基团,具有对VR1激活的强抑制作用和基于此的优异药理学作用,并发现它可以成为治疗或预防嗜痛性疼痛、神经病理性疼痛、癌症疼痛、头痛、膀胱功能障碍等VR1相关疾病的优秀药剂。