Structures of tabernaelegantines A–D and tabernaelegantinines A and B, new indole alkaloids from Tabernaemontana elegans
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 13,p. 1432-1438
- https://doi.org/10.1039/p19760001432
Abstract
The structures of tabernaelegantines A–D [(1)–(4)] and tabernaelegantinies A and B [(5)–(6)], new ‘dimeric’ indole alkaloids isolated from the root bark of Tabernaemontana elegans Stapf., have been determined from their i.r., u.v., mass, and 1H and 13C n.m.r. spectra. The structural elucidation required the analysis of the carbon-13 spectra of voacangine, dregaminol, and tabernaemontanol. The 13C n.m.r. investigation supports the revision of the reported configurations at C-20 of dregamine and tabernaemontanine.This publication has 1 reference indexed in Scilit:
- Die Struktur der 2‐Acylindol‐Alkaloide Vobasin, Dregamin und TabernaemontaninHelvetica Chimica Acta, 1963