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Synthesis and structural study of new highly lipophilic 1,4-dihydropyridines

机译:新型高亲脂性1,4-二氢吡啶的合成与结构研究

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A new series of 1,4-dihydropyridines (1,4-DHPs) endowed with ester groups bearing long and functionalised alkoxy chains at the C3 and C5 positions of the nitrogen ring have been prepared from the corresponding beta-keto esters which were in turn prepared by a lipase catalysed transesterification reaction.The structural study has been carried out by X-ray crystallography and theoretical calculations at the semiempirical (AMI),ab initio (HF/6-31G~*) and B3LYP/6-31G~* levels and reveals that the long alkyl chains do not have any influence on the required geometry of the 1,4-DHPs for biological activity.However,these chains have a strong impact on the lipophilicity and,therefore,they could be used to gain a better control of the duration of the pharmacological action.
机译:由相应的β-酮酯制备了一系列新的1,4-二氢吡啶(1,4-DHPs),这些酯基具有在氮环的C3和C5位置带有长且官能化的烷氧基链的酯基。 X射线晶体学和理论计算在半经验(AMI),从头算(HF / 6-31G〜*)和B3LYP / 6-31G〜*水平进行了结构研究并揭示出长烷基链对1,4-DHP的生物活性所需的几何形状没有任何影响。但是,这些链对亲脂性有很强的影响,因此可以用来获得更好的亲脂性。控制药理作用的持续时间。

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