摘要:
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.
摘要:
Disclosed is a novel and excellent therapeutic or prophylactic agent for nociceptive pain, neuropathic pain, cancer pain, headache, bladder dysfunction or the like, which relies on a preventive activity on capsaicin receptor VR1 activation. It is found that a benzamide derivative having a benzene ring fused with a monocyclic ring on a nitrogen atom in the amide group and an amino group substituted by a lower alkylamino or cyclic group at a position adjacent to the amide group has a potent preventive activity on VR1 activation and an excellent pharmacological activity relying on the preventive activity, and therefore the derivative can be used as a good therapeutic or prophylactic agent for a VR1-related disease, such as nociceptive pain, neuropathic pain, cancer pain, headache and bladder dysfunction.