(+)-(14β)-14-Ethylmatridin-15-one, a New Quinolizidine Alkaloid from the Poisonous PlantOxytropis ochrocephalaBunge

(+)-(14β)-14-Ethylmatridin-15-one, a New Quinolizidine Alkaloid from the Poisonous PlantOxytropis ochrocephalaB<scp>unge</scp> Ochrocephalamine A, a new quinolizidine alkaloid from Oxytropis ochrocephala Bunge A New Quinolizidine Alkaloid from Oxytropis ochrocephala (+)-9α-Hydroxymatrine from Sophora macrocarpa (-)-14.BETA.-Acetoxymatrine and (+)-14.ALPHA.-Acetoxymatrine, Two New Matrine-Type Lupin Alkaloids from the Leaves of Sophora tonkinensis. (+)-5,17-dehydromatrine N-oxide, a new alkaloid in Euchresta japonica (+)-5α,9α-dihydroxymatrine, a new lupin alkaloid from Euchresta horsfeldii Alkaloids from Oxytropis ochrocephala and antiproliferative activity of sophoridine derivatives against cancer cell lines Ochrocephalamines E and F, two new alkaloids from Oxytropis ochrocephala bung (-)-14.BETA.-Hydroxymatrine, a New Lupine Alkaloid from the Roots of Sophora tonkinensis.