申请人:Sumitomo Dainippon Pharma Co., Ltd.
公开号:EP3597640A1
公开(公告)日:2020-01-22
The present invention relates to a medicament for treating or preventing a disease involving Nav 1.7, specifically such neuropathic pain, nociceptive pain, inflammatory pain, small-fiber neuropathy, erythromelalgia, paroxysmal extreme pain disorder, dysuria, and multiple sclerosis, comprising a compound of formula (I) wherein R1a, R1b, R1c, and R1d are hydrogen, halogen, cyano, C1-4 alkyl, C1-4 alkoxy, etc., provided that at least one of R1a, R1b, R1c and R1d is the above C6-10 aryl, C6-10 aryloxy, etc., R2 and R3 are hydrogen, C1-6 alkyl, C3-10 cycloalkyl, etc., R4 is hydrogen, C1-6 alkyl, C3-4cycloalkyl, etc., m is 0, 1, 2, or 3, L is CR7R8, R7 and R8 are hydrogen, hydroxy group, C1-4 alkyl, C1-4 alkoxy, etc., or a pharmaceutically acceptable salt thereof.
本发明涉及一种用于治疗或预防涉及Nav1.7的疾病的药物,具体包括神经病理性疼痛、伤害性疼痛、炎性疼痛、小纤维神经病、红斑性痛、阵发性极度疼痛障碍、排尿困难和多发性硬化等,所述药物包含式(I)的化合物,其中R1a、R1b、R1c和R1d为氢、卤素、氰基、C1-4烷基、C1-4烷氧基等,但至少其中一个为上述的C6-10芳基、C6-10芳氧基等,R2和R3为氢、C1-6烷基、C3-10环烷基等,R4为氢、C1-6烷基、C3-4环烷基等,m为0、1、2或3,L为CR7R8,R7和R8为氢、羟基、C1-4烷基、C1-4烷氧基等,或其药学上可接受的盐。