Synthesis and Anticonvulsant Activity of N-(trans)- 3-phenylprop-2-en-1-yl (Cinnamyl) Derivatives of Aminoalkanols
作者:Agnieszka Gunia-Krzyzak、Anna Waszkielewicz、Karolina Sloczynska、Magda Borczuch- Kostanska、Marek Cegla、Grzegorz Satala、Andrzej Bojarski、Henryk Marona
DOI:10.2174/1570180811666140423203639
日期:2014.8.8
A series of sixteen N-(trans)-3-phenylprop-2-en-1-yl (cinnamyl) derivatives of various aminoalkanols was synthesized
and evaluated for anticonvulsant activity and neurotoxicity. In preliminary evaluation three standard tests in mice
after intraperitoneal administration were used: maximal electroshock (MES), subcutaneous pentetrazol, and rotarod test.
Fifteen compounds showed some protection in MES. Next step included evaluation in rats after oral administration. The
most promising compound, (R,S)-2-[(trans)-3-phenylprop-2-en-1-yl]amino}propan-1-ol hydrochloride (1a), was also
tested in model of pilocarpine-induced status prevention, 6-Hz test, and in vitro neuroprotection evaluation. Additionally,
for selected compounds experimental pKa values were determined as well as serotonin receptors (5-HT1A, 5-HT6, and 5-
HT7) binding affinities were found. None of the tested compounds showed significant binding affinity to serotonin receptors.
However, in vivo pharmacological results indicated that further modification of the structures might lead to discovering
new potential anticonvulsants.
合成了16种N-(反)-3-苯基丙-2-烯-1-基(肉桂基)衍生自各种氨基醇的化合物,并评估了它们的抗癫痫活性和神经毒性。在初步评估中,对小鼠进行了腹腔注射后的三种标准测试:最大电休克(MES)、皮下戊四氮和滚筒测试。15种化合物在MES中显示出一定的保护作用。下一步包括在口服给药后对大鼠进行评估。最有希望的化合物,(R,S)-2-[(反)-3-苯基丙-2-烯-1-基]氨基}丙-1-醇盐酸盐(1a),也在匹鲁卡平诱导的状态预防模型、6-Hz测试和体外神经保护评估中进行了测试。此外,对于选定的化合物,还测定了实验性pKa值以及血清素受体(5-HT1A、5-HT6和5-HT7)结合亲和力。所有测试的化合物都没有显示出与血清素受体显著的结合亲和力。然而,体内药理学结果表明,进一步的结构修饰可能会发现新的潜在抗癫痫药物。