申请人:Astellas Pharma Inc.
公开号:EP2149560A1
公开(公告)日:2010-02-03
Provided is a compound useful as an N-type Ca2+ channel blocker. As a result of intensive studies of compounds having an action of blocking N-type Ca2+ channels, the present inventors found that a tetrahydroisoquinoline compound of the present invention having a substituent at the 1-position has an action of blocking the N-type Ca2+ channels, an antinociceptive pain action, an antineuropathic pain action, an abdominal pain-inhibitory action and an opioid-induced constipation-improving action, and the present invention has been completed based on these findings. The compound of the present invention can be used as a pharmaceutical composition for preventing and/or treating various pains such as neuropathic pain and nociceptive pain, headaches such as migraine and cluster headache, central nervous system diseases such as anxiety, depression, epilepsy, cerebral stroke and restless legs syndrome, abdominal symptoms such as abdominal pain and abdominal distension, stool abnormalities such as diarrhea and constipation, digestive system diseases such as irritable bowel syndrome, urinary system diseases such as overactive bladder and interstitial cystitis, etc.
本发明提供了一种可用作 N 型 Ca2+ 通道阻断剂的化合物。经过对具有阻断 N 型 Ca2+ 通道作用的化合物的深入研究,本发明人发现本发明的一种在 1 位上具有取代基的四氢异喹啉化合物具有阻断 N 型 Ca2+ 通道的作用、抗痛觉痛作用、抗神经病理性痛作用、腹痛抑制作用和阿片类药物诱导的便秘改善作用,并根据这些发现完成了本发明。本发明的化合物可作为药物组合物用于预防和/或治疗各种疼痛,如神经病理性疼痛和痛觉疼痛、头痛,如偏头痛和丛集性头痛、中枢神经系统疾病,如焦虑症、抑郁症、癫痫、腹痛和腹胀等腹部症状,腹泻和便秘等大便异常,肠易激综合征等消化系统疾病,膀胱过度活跃和间质性膀胱炎等泌尿系统疾病等。