Synthesis, antihistaminic action and theoretical studies of (4-methoxybenzyl)(1,4,5,6-tetrahydropirimidin-2-yl)amine hydroiodide
作者:Murat Genc、Engin Yılmaz、Selcuk Ilhan、Zuhal Karagoz
DOI:10.1007/s11164-012-0813-5
日期:2013.9
In this study, (4-methoxybenzyl)(1,4,5,6-tetrahydropyrimidin-2-yl)amine hydroiodide (2) was synthesized by reaction of 2-methylmercapto-1,4,5,6-tetrahydropyrimidine hydroiodide (1) and 4-methoxybenzylamine. The synthesized compound was tested for its in vitro H1-antihistaminic activity on guinea pig trachea. A promising bronchorelaxant effect of 2 was observed in histamine-contracted guinea pig tracheal
在这项研究中,(4-甲氧基苄基)(1,4,5,6-四氢嘧啶-2-基)胺碘化氢(2)通过2-甲基巯基-1,4,5,6-四氢嘧啶氢碘化物(1)和4-甲氧基苄胺。测试合成的化合物对豚鼠气管的体外H1抗组胺活性。通过H1受体拮抗作用,在组胺收缩的豚鼠气管链中观察到2的有希望的支气管舒张作用。此外,包括原子轨道(GIAO)1在内的分子几何和量规使用密度泛函方法(DFT / UB3LYP)和Hartree-Fock(HF)方法使用6–311G +(d),6-311G +(d,p),LANL2DZ计算标题化合物在基态的H化学位移值,DGDZVP和DGDZVP2基集,并与实验数据进行比较。根据实验和理论结果,在评估1 H核磁共振(NMR)化学位移值时,HF / 6–311G +(d)显示出更好的实验值。理论研究支持了我们的发现,表明N 12原子是最亲核的。另外,该化合物的其他结构如芳环和OCH 3基团增加了该性能。