New phenatroindolizidine N-oxides alkaloids isolated from Vincetoxicum hirudinaria medic.

New phenatroindolizidine N-oxides alkaloids isolated from Vincetoxicum hirudinaria medic. Cytotoxic Activity of Some Phenanthroindolizidine <i>N</i>-Oxide Alkaloids from <i>Cynanchum </i><i>v</i><i>incetoxicum</i> In Vitro Cytotoxic Activity of Phenanthroindolizidine Alkaloids from <i>Cynanchum </i><i>v</i><i>incetoxicum</i> and <i>Tylophora </i><i>t</i><i>anakae</i> against Drug-Sensitive and Multidrug-Resistant Cancer Cells In Vitro Cytotoxic Activity of Phenanthroindolizidine Alkaloids from <i>Cynanchum </i><i>v</i><i>incetoxicum</i> and <i>Tylophora </i><i>t</i><i>anakae</i> against Drug-Sensitive and Multidrug-Resistant Cancer Cells Die Alkaloide aus <i>Hedranthera barteri (Hook. f.) Pichon</i>. 139. Mitteilung über Alkaloide Alkaloids from the stem-bark of Alstonia macrophylla Alkaloide ausVinca minor L. Vincadin, Minovin und Vincorin A benzopyrroloisoquinoline alkaloid from Ficus fistulosa Alcaloïdes des feuilles et écorces de tronc d'Alstonia odontophora Two New Indole Alkaloids from the Bark of Anthocephalus chinensis