A New Cytotoxicβ-Carboline Alkaloid fromGalianthe thalictroides

A New Cytotoxicβ-Carboline Alkaloid fromGalianthe thalictroides Further constituents of Galianthe thalictroides (Rubiaceae) and inhibition of DNA topoisomerases I and IIα by its cytotoxic β-carboline alkaloids Cytotoxic and Antimalarial β-Carboline Alkaloids from the Roots of <i>Eurycoma longifolia</i> Cytotoxic and Antimalarial β-Carboline Alkaloids from the Roots of <i>Eurycoma longifolia</i> Rubiaceae-Type Cyclopeptides from Galianthe thalictroides Seven Alkaloids from Picrasma quassioides and Their Cytotoxic Activities Cytotoxic isoquinoline alkaloids from the roots of Thalictrum foliolosum Two new β-carboline alkaloids from the stems of Picrasma quassioides Carboline Alkaloids fromPsammosilene tunicoidesand Their Cytotoxic Activities β-Carboline alkaloids from the leaves of Trigonostemon lii Y.T. Chang