Synthesis and Pharmacological Evaluation of New 3,4-Dihydroisoquinolin Derivatives Containing Heterocycle as Potential Anticonvulsant Agents.

Synthesis and Pharmacological Evaluation of New 3,4-Dihydroisoquinolin Derivatives Containing Heterocycle as Potential Anticonvulsant Agents.
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作为潜在抗惊厥药物的新型含杂环 3,4-二氢异喹啉衍生物的合成和药理评价。

DOI:
10.3390/molecules21121635
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发表时间:
2016-11-29
期刊:
Molecules (Basel, Switzerland)
影响因子:
--
通讯作者:
Quan ZS
Quan ZS
中科院分区:
其他
文献类型:
--
作者:
Zhang HJ;Shen QK;Jin CM;Quan ZS

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合成了两个具有杂环衍生物的3,4-二氢异喹啉新系列(4a-t和9a-e),并通过最大电击(MES)试验和戊四唑(PTZ)诱发癫痫试验评价了它们的抗惊厥活性。所有化合物均通过IR、1H-NMR、13C-NMR和质谱数据进行了表征。其中,9-(乙氧基)-5,6-二氢-[1,2,4]三唑[3,4-a]异喹啉-3(2H)- 1 (9a)在MES试验中表现出显著的抗惊厥活性,ED50值为63.31 mg/kg,具有较大的安全边际和保护指数(PI > 7.9)。其抗惊厥活性明显高于丙戊酸。它还显示出对ptz诱发的癫痫发作的有效活性。化合物9a在γ-氨基丁酸(GABAA)受体苯二氮卓(BZD)结合位点的对接研究证实了化合物9a可能与BZD受体结合。
Two novel series of 3,4-dihydroisoquinolin with heterocycle derivatives (4a–t and 9a–e) were synthesized and evaluated for their anticonvulsant activity using maximal electroshock (MES) test and pentylenetetrazole (PTZ)-induced seizure test. All compounds were characterized by IR, 1H-NMR, 13C-NMR, and mass spectral data. Among them, 9-(exyloxy)-5,6-dihydro-[1,2,4]triazolo[3,4-a]isoquinolin-3(2H)-one (9a) showed significant anticonvulsant activity in MES tests with an ED50 value of 63.31 mg/kg and it showed wide margins of safety with protective index (PI > 7.9). It showed much higher anticonvulsant activity than that of valproate. It also demonstrated potent activity against PTZ-induced seizures. A docking study of compound 9a in the benzodiazepine (BZD)-binding site of γ-aminobutyric acidA (GABAA) receptor confirmed possible binding of compound 9a with the BZD receptors.
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