1.
Org Lett
; 15(1): 156-9, 2013 Jan 04.
Artículo
en Inglés
| MEDLINE
| ID: mdl-23249326
RESUMEN
The constitution of the aglycon of nudicaulin has been revised to be a pentacyclic indole alkaloid. The relative and absolute configurations of the two diastereomers, nudicaulins I (3a) and II (3b), have been assigned by NMR, conformational analyses, and interpretation of the experimental ECD spectra by quantum-chemical calculations.