Tetramethylcyclopropyl Analogue of a Leading Antiepileptic Drug, Valproic Acid. Synthesis and Evaluation of Anticonvulsant Activity of Its Amide Derivatives
作者:Eyal Sobol、Meir Bialer、Boris Yagen
DOI:10.1021/jm0498351
日期:2004.8.1
Although valproic acid (VPA) is an extensively used antiepileptic drug for treatment of various kinds of epilepsies, it has been proven to possess two life-threatening side effects: hepatotoxicity and teratogenicity. Amide and urea derivatives of 2,2,3,3-tetramethylcyclopropanecarboxylic acid (TMCA) were prepared to discover lead compounds with clinical potential. In the amide and alkylamide series
尽管丙戊酸(VPA)是用于治疗各种癫痫病的广泛使用的抗癫痫药,但已证明它具有两种危及生命的副作用:肝毒性和致畸性。制备了2,2,3,3-四甲基环丙烷羧酸(TMCA)的酰胺和脲衍生物,以发现具有临床潜力的先导化合物。在TMCA衍生物的酰胺和烷基酰胺系列中,N-甲氧基-2,2,3,3-四甲基环丙烷甲酰胺(21)是活性最高的化合物之一,其皮下甲硝唑试验(scMet)ED50值为35 mg / kg。大鼠和74 mg / kg的小鼠。在最大的电击诱发癫痫发作试验(MES)中,该化合物的大鼠ED50值为108 mg / kg,小鼠为115 mg / kg。在相应的大鼠试验中,化合物21的效力是VPA的18.5和4.5倍。尿素衍生物系列中活性最高的化合物是2,2,3,3-四甲基环丙烷羰基脲(25),大鼠的MES ED50值为29 mg / kg,小鼠的MES ED50值为90 mg / kg。在scM