Alstonia Alkaloids. VI. The Structure of Alstoniline Oxide

Alstonia Alkaloids. VI. The Structure of Alstoniline Oxide ALSTONIA ALKALOIDS. IV. THE STRUCTURE OF ALSTONILINE¹ ALSTONIA ALKALOIDS. II. A NEW ALKALOID, ALSTONILINE, FROM A. CONSTRICTA Isolation and Structural Studies on the Alkaloids of Alstonia macrophylla Oxindole alkaloids from Alstonia macrophylla 5-Methoxy-1-oxo-tetrahydro-β-carboline, an alkaloid from Alstonia venenata New Indole Alkaloids from Alstonia macrophylla Alstophyllin, ein neues Indolalkaloid aus <i>Alstonia macrophylla</i> W<scp>ALL</scp> Alstophyllin, ein neues Indolalkaloid aus Alstonia macrophylla W<scp>ALL</scp> Alcaloides d'Alstonia lanceolifera