α-Fluoro-2,2,3,3-Tetramethylcyclopropanecarboxamide, a Novel Potent Anticonvulsant Derivative of a Cyclic Analogue of Valproic Acid
作者:Neta Pessah、Meir Bialer、Bogdan Wlodarczyk、Richard H. Finnell、Boris Yagen
DOI:10.1021/jm900017f
日期:2009.4.23
2,2,3,3-Tetramethylcyclopropanecarboxylic acid (TMCA, 4) is a cyclic analogue of the antiepileptic drug (AED) valproic acid (VPA) (1). α-F, α-Cl, α-Br, and α-methyl derivatives of 4 and their amides were synthesized and tested in rodent models for anticonvulsant potency and AED-induced teratogenicity. In the anticonvulsant rat-maximal electroshock (MES) and subcutaneous metrazol (scMet) tests, α-Cl-TMCD
2,2,3,3-四甲基环丙烷甲酸(TMCA,4)是抗癫痫药(AED)丙戊酸(VPA)(1)的环状类似物。合成了4的α-F,α-Cl,α-Br和α-甲基衍生物及其酰胺,并在啮齿动物模型中测试了其抗惊厥潜能和AED引起的致畸性。在抗惊厥性大鼠最大电击(MES)和皮下甲硝唑(scMet)测试中,α-Cl-TMCD(17)的ED 50值分别为97和27 mg / kg。在大鼠scMet试验(ED 50 = 6 mg / kg)中,α-F-TMCD(11)的效力是VPA的120倍,并且具有保护指数(PI = TD 50 / ED 50)的20.在6赫兹精神运动小鼠模型11具有ED 50个的57毫克/公斤(32 MA)和59毫克/公斤(44 mA)的值。在海马型大鼠模型和毛果芸香碱诱导的大鼠模型中,ED 50值为11,分别为30 mg / kg和23 mg / kg。与1不同,11在小鼠中没有致畸性。