Isolation and Complete Structural Assignment of <i>Lycopodium</i> Alkaloid Cernupalhine A: Theoretical Prediction and Total Synthesis Validation
作者:Liao-Bin Dong、Ya-Nan Wu、Shi-Zhi Jiang、Xing-De Wu、Juan He、Yu-Rong Yang、Qin-Shi Zhao
DOI:10.1021/ol500978k
日期:2014.5.16
possessing a new C17N skeleton with an unusual hydroxydihydrofuranone motif newly isolated from Palhinhaea cernua L. Its complete structural assignment, including absolute stereochemistry, was established through a combination of high-field NMR techniques and computational methods and further unequivocal confirmation by the first asymmetric total synthesis. Following the first total synthesis of lobscurinine
Cernupalhine A(1)是一种微量的Lycopodium生物碱(0.7 mg),具有一个新的C 17 N骨架,该骨架具有从Palhinhaea cernua L新分离的不寻常的羟基二氢呋喃酮基序。现场核磁共振技术和计算方法,并由第一个不对称全合成进一步明确证实。以下lobscurinine(第一全合成3),1经由区域选择性和立体选择性的氰离子添加和其后的酸处理来实现。