Indole alkaloids from the roots of an african plant securidaca longipedunculata. I. Isolation by column chromatography and preliminary structural characterization by mass spectrometry

Indole alkaloids from the roots of an african plant <i>securidaca longipedunculata</i>. <b>I</b>. Isolation by column chromatography and preliminary structural characterization by mass spectrometry Indole alkaloids from the roots of an african plant securidaca longipedunculata. <b>I</b>. Isolation by column chromatography and preliminary structural characterization by mass spectrometry Secu'amamine A, a novel indolizidine alkaloid from Securinega suffruticosa var. amamiensis New alkaloids from Cryptolepis sanguinolenta The alkaloids of Margaritaria indica. Part 2. The structures of 4-epiphyllanthine, margaritarine and the structural revision of securinol A Two New Securinega Alkaloids from Securinega suffruticosa Two New <i>Securinega</i> Alkaloids from <i>Securinega suffruticosa</i> Isolation and Identification of Ergoline Alkaloids from Seeds of Stictocardia campanulata (L.) Merrill Structure of Securitinine. 3-Hydroxyneocryptolepine, a new indoloquinoline alkaloid from the roots of Cryptolepis sanguinolenta (Lindl.) Schltr