New indole alkaloids from the leaves of Malaysian Mitragyna speciosa

New indole alkaloids from the leaves of Malaysian Mitragyna speciosa Alkaloids from Mitragyna speciosa 3-dehydromitragynine: An alkaloid from Mitragyna speciosa Isolation, characterization, and NMR spectroscopic data of indole and oxindole alkaloids from Mitragyna speciosa Structure revision of mitragynaline, an indole alkaloid in Mitragyna speciosa THE MITRAGYNA SPECIES OF ASIA – Part IV. The alkaloids of the leaves of<i>Mitragyna speciosa</i>Korth.. Isolation of Mitragynine and Speciofoline¹ The Mitragyna Species of Asia A new indole alkaloid, 7-hydroxyspeciociliatine, from the fruits of Malaysian Mitragyna speciosa and its opioid agonistic activity Isolation and Asymmetric Total Synthesis of a New <i>Mitragyna</i> Indole Alkaloid, (−)-Mitralactonine A new indole alkaloid, 7-hydroxyspeciociliatine, from the fruits of Malaysian Mitragyna speciosa and its opioid agonistic activity