A series novel of N‐(2‐hydroxyethyl)amide derivatives was synthesized and screened for their anticonvulsant activities by the maximal electroshock (MES) test, and their neurotoxicity was evaluated by the rotarod test (Tox). The maximal electroshock test showed that N‐(2‐hydroxyethyl)decanamide 1g, N‐(2‐hydroxyethyl)palmitamide 1l, and N‐(2‐hydroxyeth‐yl)stearamide 1n were found to show a better anticonvulsant activity and also had lower toxicity than the marked anti‐epileptic drug valproate. In the anti‐MES potency test, these compounds exhibited median effective doses (ED50) of 22.0, 23.3, 20.5 mg/kg, respectively, and median toxicity doses (TD50) of 599.8, >1000, >1000 mg/kg, respectively, resulting in a protective index (PI) of 27.5, >42.9, >48.8, respectively. This is a much better protective index than that of the marked anti‐epileptic drug valproate (PI = 1.6). To further investigate the effects of the anticonvulsant activity in several different models, compounds 1g, 1l, and 1n were tested having evoked convulsions with chemical substances, including pentylenetetrazloe, isoniazide, 3‐mercaptopropionic acid, bicuculline, thiosemicarbazide, and strychnine.

中文翻译：

---

N-(2-羟基-乙基)酰胺衍生物的合成及抗惊厥活性

合成了一系列新型 N-(2-羟乙基)酰胺衍生物，并通过最大电休克 (MES) 试验筛选其抗惊厥活性，并通过旋转棒试验 (Tox) 评估其神经毒性。最大电休克试验表明，N-（2-羟乙基）癸酰胺 1g、N-（2-羟乙基）棕榈酰胺 1l 和 N-（2-羟乙基）硬脂酰胺 1n 显示出更好的抗惊厥活性，并且具有更低的抗惊厥活性。毒性比标记的抗癫痫药丙戊酸盐要低。在抗 MES 效力测试中，这些化合物的中位有效剂量 (ED50) 分别为 22.0、23.3、20.5 mg/kg，中位毒性剂量 (TD50) 分别为 599.8、>1000、>1000 mg/kg，导致保护指数 (PI) 分别为 27.5、>42.9、>48.8。这是比标记的抗癫痫药物丙戊酸盐（PI = 1.6）更好的保护指数。为了进一步研究几种不同模型中抗惊厥活性的影响，测试了化合物 1g、1l 和 1n 引起的惊厥，这些化学物质包括戊四唑、异烟肼、3-巯基丙酸、荷包牡丹碱、氨基硫脲和马钱子碱。