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.
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.
F for fast: The perfluorinated solvent C6F14 is the key to a new variant of the Balz–Schiemann reaction for the synthesis of fluorinated arenes. Triazenes are converted into fluoroarenes under mild conditions on a support and in solution (see scheme). The method is straightforward and inexpensive, and yields previously difficult‐to‐prepare fluoroarenes in high purity.
快速反应的F:全氟化溶剂C 6 F 14是Balz-Schiemann反应新变体(用于合成氟化芳烃)的关键。在温和的条件下,将三氮烯在载体和溶液中转化为氟代芳烃(参见方案)。该方法简便易行且价格便宜,并且可以产生以前难以制备的高纯度氟代芳烃。