Extraction of the leaves of Lerchea bracteata Val. (Rubiaceae) has yielded a quaternary Corynanthé alkaloid, dihydro-3-epi-corynantheol methochloride (lercheine)4 the structure of which followed from analysis of its spectral data and by X-ray crystal structure determination of the corresponding bromide.
D. Arbain, N. H. Lajis, D. P. Putra, M. V. Sargent, B. W. Skelton and A. H. White, J. Chem. Soc., Perkin Trans. 1, 1992, 3039 DOI: 10.1039/P19920003039
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