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Synthetic modifications of carboline alkaloid harmine: synthesis of 8-substituted derivatives

机译:Carboline生物碱的合成修饰问题:8个取代衍生物的合成

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Hybrid molecules containing -carboline and 1-acetylpyrazoline moieties were obtained on the basis of the alkaloid harmine. The synthetic procedure included acetylation of harmine with acetyl chloride in the presence of tin(IV) chloride, Claisen-Schmidt condensation with benzaldehydes under basic conditions, and cyclization of the obtained chalcones by the action of hydrazine hydrate and acetic acid. In addition, a method was proposed for the preparation of 8-formylharmine by treating harmine with dichloromethoxymethane in the presence of tin(IV) chloride. The structures of the synthesized compounds were confirmed by NMR spectra, mass spectra, and X-ray structural analysis.
机译:基于生物碱的气动获得含含碱和1-乙酰吡唑啉部分的杂化分子。 合成程序包括在锡(IV)氯化锡的存在下用乙酰氯,Claisen-Schmidt缩合在基本条件下,通过肼水合物和乙酸的作用来环化所得硫酸的环化。 此外,提出了一种通过在锡(IV)氯化物存在下用二氯甲氧基甲烷治疗问题来制备8-甲酰甲骨。 通过NMR光谱,质谱和X射线结构分析证实了合成化合物的结构。

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