The use of carbocyclic and heterocyclic substituted semicarbazones and thiosemicarbazones as sodium channel blockers
申请人:Euro-Celtique S.A.
公开号:EP1568690A1
公开(公告)日:2005-08-31
This invention is related to carbocyclic and heterocyclic substituted semicarbazones and thiosemicarbazones represented by formula (I), or a pharmaceutically acceptable salt or prodrug thereof, wherein: Y is oxygen or sulfur; R1, R21, R22 and R23 are independently hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl; or R22 and R23, together with the N, form a heterocycle; A1 and A2 are independently aryl, heteroaryl, saturated or partially unsaturated carbocycle or saturated or partially unsaturated heterocycle, any of which is optionally substituted; X is one or O, S, NR24, CR25R26, C(O), NR24C(O), C(O)NR24, SO, SO2 or a covalent bond; where R24, R25 and R26 are independently hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl. The invention is also directed to the use of carbocycle and heterocycle substituted semicarbazones and thiosemicarbazones for the treatment of neuronal damage following global and focal ischemia, for the treatment or prevention of neurodegenerative conditions such as amyiotrophic lateral sclerosis (ALS), for the treatment and prevention of otoneurotoxicity and eye diseases involving glutamate toxicity and for the treatment, prevention or amelioration of pain, as anticonvulsants, and as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy and urinary incontinence.
本发明涉及式(I)代表的碳环和杂环取代的半咔唑酮和硫代咔唑酮,或其药学上可接受的盐或原药,其中:Y是氧或硫;R1、R21、R22和R23独立地是氢、烷基、环烷基、烯基、炔基、卤代烷基、芳基、氨基烷基、羟基烷基、烷氧基烷基或羧基烷基;或R22和R23与N一起形成杂环;A1和A2独立地是芳基、杂芳基、饱和或部分不饱和碳环或饱和或部分不饱和杂环,其中任何一个都被任选取代;X是一个或O、S、NR24、CR25R26、C(O)、NR24C(O)、C(O)NR24、SO、SO2或共价键;其中R24、R25和R26独立地是氢、烷基、环烷基、烯基、炔基、卤代烷基、芳基、氨基烷基、羟基烷基、烷氧基烷基或羧基烷基。本发明还涉及碳环和杂环取代的半咔唑酮和硫代咔唑酮用于治疗全局性和局灶性缺血后的神经元损伤,治疗或预防神经退行性疾病,如肌萎缩性脊髓侧索硬化症(ALS)、用于治疗和预防耳神经毒性和涉及谷氨酸毒性的眼部疾病,用于治疗、预防或改善疼痛,用作抗惊厥药、抗躁狂抑制剂、局部麻醉剂、抗心律失常药,以及用于治疗或预防糖尿病神经病变和尿失禁。