Nb-demethylalstophylline oxindole an oxindole alkaloid from the leaves of Alstonia macrophylla

Nb-demethylalstophylline oxindole an oxindole alkaloid from the leaves of Alstonia macrophylla Isolation and Structural Studies on the Alkaloids of Alstonia macrophylla Oxindole alkaloids from Alstonia macrophylla Macroxine-a novel oxindole alkaloid from Alstonia macrophylla New Indole Alkaloids from Alstonia macrophylla New Indole Alkaloids from <i>Alstonia macrophylla</i> Chemical Constituents of Alstonia macrophylla Pyrrole-3-carbamidine: A lethal principle from Nierembergia hippomanica Alstophyllin, ein neues Indolalkaloid aus Alstonia macrophylla W<scp>ALL</scp> Alstophyllin, ein neues Indolalkaloid aus <i>Alstonia macrophylla</i> W<scp>ALL</scp>