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.
提供一种基于对
辣椒素受体 VR1 激活的抑制作用,用于治疗或预防痛觉痛、神经病 理痛、癌痛、头痛、膀胱功能紊乱等的新型优良制剂。
本发明是通过确认一种苯甲酰胺衍
生物,其特征在于该衍
生物具有一个苯环,在该苯环中,一个单环缩合在
氨基基团的氮原子上,并且在所述
氨基基团的邻近位置上具有一个被环基取代的低级烷基
氨基或
氨基,该衍
生物对 VR1 的活化具有很强的抑制作用,并在此基础上具有很好的药理作用,并发现该衍
生物可以成为治疗或预防 VR1 相关疾病(如痛觉疼痛)的一种很好的药物、神经性疼痛、癌痛、头痛、膀胱功能紊乱等。