SCHEDULED MAINTENANCE
Treatment of tabersonine with refluxing acetic acid under nitrogen yielded a new base, allocatharanthine (VI), and the derived (VII), but failed to produce detectable quantities of (±)-catharanthine or pseudocatharanthine, nor did similar treatment of stemmadenine afford any of these compounds.
R. T. Brown, J. S. Hill, G. F. Smith, K. S. J. Stapleford, J. Poisson, M. Muquet and N. Kunesch, J. Chem. Soc. D, 1969, 1475 DOI: 10.1039/C29690001475
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