Pachychalines A–C: Novel 3-Alkylpyridinium Salts from the Marine SpongePachychalina sp.
作者:Rémi Laville、Olivier P. Thomas、Fabrice Berrue、Fernando Reyes、Philippe Amade
DOI:10.1002/ejoc.200700741
日期:2008.1
Three 3-alkylpyridinium salts, pachychalines A (1), B (2) and C (3), were isolated from the Caribbean marine spongePachychalina sp. (order Haplosclerida). They are the first examples of 3-(aminoalkyl)pyridinium salts. Their chemical structures were elucidated by NMR spectroscopy and detailed ESI HRMS–MS analysis. The total synthesis of 1 allowed the confirmation of the unusual C–C connection between
三种 3-烷基吡啶盐,粗胆碱 A (1)、B (2) 和 C (3),是从加勒比海海绵中分离出来的。(为了 Haplosclerida)。它们是 3-(氨基烷基)吡啶鎓盐的第一个例子。通过核磁共振光谱和详细的 ESI HRMS-MS 分析阐明了它们的化学结构。1 的全合成允许确认两个吡啶部分之间不寻常的 C-C 连接。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)