Two New Macrolide Sesquiterpene Pyridine Alkaloids from Maytenus emarginata: Emarginatine G and the Cytotoxic Emarginatine F

Two New Macrolide Sesquiterpene Pyridine Alkaloids from Maytenus emarginata: Emarginatine G and the Cytotoxic Emarginatine F Two New Macrolide Sesquiterpene Pyridine Alkaloids from Maytenus emarginata: Emarginatine G and the Cytotoxic Emarginatine F Sesquiterpene pyridine alkaloids from Maytenus emarginata: Emarginatine-C and -D and cytotoxic emarginatine-E and emarginatinine Antitumor Agents, 112. Emarginatine B, a Novel Potent Cytotoxic Sesquiterpene Pyridine Alkaloid from Maytenus emarginata Antitumor Agents, 112. Emarginatine B, a Novel Potent Cytotoxic Sesquiterpene Pyridine Alkaloid from Maytenus emarginata Structure and Stereochemistry of Emargiatine-A, a Novel Cytotoxic Sesquiterpene Pyridine Alkaloid from Maytenus emarginata: X-Ray Crystal Steructure of Emarginatine-A Monohydrate A New Triterpene Lactone, Maytenfolone, and a New Sesquiterpene Pyridine Alkaloid, Emarginatine H, from the Leaves of Maytenus diversifolia Royleanine A, an Antitumor Dihydro-β-agarofuran Sesquiterpene Pyridine Alkaloid from Maytenus royleanus Celahinine A, a New Sesquiterpene Pyridine Alkaloid from Celastrus hindsii Celahinine A, a New Sesquiterpene Pyridine Alkaloid from Celastrus hindsii