Seven alkaloids have been isolated from bulbs of Narcissus cv. Salome. 2α-Hydroxy-6-O-methyloduline is reported here for the first time; its structure and stereochemistry were established by physical and spectroscopic methods. 1H and 13C NMR spectra of vasconine and hippeastrine were completely assigned by means of two-dimensional NMR techniques.
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Acknowledgements--Part of this work was supported financially by CIRIT-CICYT project (QFN95-4711) and the Comissionat per a Universitats i Recerca, Generalitat de Catalunya. G.R.A. and E.W.T.W. thank the Instituto de Cooperaci6n Iberoamericana and the Agencia Espafiola de Cooperaci6n Internacional, respectively, for the provision of a research fellowship. The authors are grateful to the Servei de Parcs i Jardins de l'Ajuntament de Barcelona for providing plant material.
- n orgalanthamine
- Narcissus cv. Salome