Stereoselective synthesis of Nuphar quinolizidine alkaloid, (−)-deoxynupharidine
作者:Miho Katoh、Hirotake Mizutani、Toshio Honda
DOI:10.1016/j.tetlet.2005.05.133
日期:2005.8
A stereoselective synthetic route to Nupharquinolizidine alkaloid, (−)-deoxynupharidine, was established by employing reductive carbon–nitrogen bond cleavage, followed by simultaneous recyclization of a proline derivative with samarium diiodide, and an intramolecular ring-closing metathesis, as the key steps.
作者:Jacek Cybulski、Krystyna Wojtasiewicz、Jerzy T. Wróbel
DOI:10.1016/0022-2860(83)90011-x
日期:1983.3
deoxynupharidine, 7-epideoxynupharidine and thiobinupharidine methiodides have been studied and the correlations between the stereochemistry of these compounds and corresponding chemical shifts are described. Quaternization of the nitrogen causes no steric changes in the trans -quinolizidine system of 7-epideoxynupharidine, whereas deoxynupharidine methiodide has a transformed quinolizidine system with cis ring