Abstract: | Nine indole alkaloids were identified from the stem bark of Alstonia lanceolifera: (?)-lochnericine, 10,11-dimethoxy 1-methyldeacetylpicraline 3′,4′,5′-trimethoxybenzoate, 10,11-dimethoxy-1-methylpicraline, akuammiline, picraline, 10-methoxy-nor-C-fluorocurarine, 11-methoxyakuatiammicine, 10-methoxycompactinervine and 11-methoxycompactinervine. |