Synthesis and Cannabinoid Receptor Activity of Ketoalkenes from<i>Echinacea pallida</i>and Nonnatural Analogues
作者:Michael Egger、Patrina Pellett、Kathrin Nickl、Sarah Geiger、Stephanie Graetz、Roland Seifert、Jörg Heilmann、Burkhard König
DOI:10.1002/chem.200801579
日期:2008.12.8
ketoalkenes using palladium-catalyzed cross-coupling reactions and the pharmaceutical results at the human cannabinoid receptors. The synthetic route developed provides overall good yields for the ketoalkenes and is applicable to other natural products with similar 1,4-diene motifs. No significant activity was observed at either receptor, indicating that the ketoalkenes from E. pallida are not responsible
尽管紫锥花产品的普及和广泛使用,其功效仍不清楚和有争议。在从紫锥菊中分离出的各种化合物中,仅在淡紫色锥花(E. pallida)中发现的酮烯和酮烯酮是提取物的主要成分。与紫癜链烷酰胺相反,这些化合物尚未合成和研究过免疫刺激作用。我们提出了使用钯催化的交叉偶联反应和对人类大麻素受体的药物合成结果,对酮烯烃的实用和有用的合成方法。所开发的合成路线为酮烯提供了总体良好的收率,并且适用于具有相似的1,4-二烯基序的其他天然产物。在任一受体上均未观察到明显的活性,表明来自E的酮烯。帕利达(Pallida)对通过大麻素系统介导的免疫调节作用不负责任。但是,新合成的非天然类似物在两种大麻素受体上均表现出微摩尔效价。