ALSTONIA ALKALOIDS. II. A NEW ALKALOID, ALSTONILINE, FROM A. CONSTRICTA

ALSTONIA ALKALOIDS. II. A NEW ALKALOID, ALSTONILINE, FROM A. CONSTRICTA A Note on the Root Bark Alkaloids from Alstonia Constricta F. Muell**Lilly Development Laboratories, Eli Lilly and Co., Indianapolis, Ind. 14-Ketoalstonidine and Other Alkaloidal Constituents of the Stem Bark of Alstonia constricta New alkaloids of Alstonia constricta Alstilobanines A–E, new indole alkaloids from Alstonia angustiloba Alstilobanines A–E, new indole alkaloids from Alstonia angustiloba Alstoniaphyllines A–C, Unusual Nitrogenous Derivatives from the Bark of <i>Alstonia macrophylla</i> Alstiphyllanines A−D, Indole Alkaloids from <i>Alstonia macrophylla</i> Alstiphyllanines A−D, Indole Alkaloids from <i>Alstonia macrophylla</i> Oxindole alkaloids from Alstonia macrophylla