Five new degraded diterpenoids from Trigonostemon xyphophylloides

Five new degraded diterpenoids from Trigonostemon xyphophylloides Trigoxyphins A−G: Diterpenes from <i>Trigonostemon xyphophylloides</i> Trigonosins A−F, Daphnane Diterpenoids from <i>Trigonostemon thyrsoideum</i> Constituents of <i>Trigonostemon heterophyllus</i> New Compounds from the Roots and Stems of Trigonostemon lii and Their Cytotoxic Activities Daphnane-Type Diterpenoids from <i>Trigonostemon howii</i> Trigohowilols A–G, Degraded Diterpenoids from the Stems of <i>Trigonostemon howii</i> Two new alkaloids from the twigs of Trigonostemon filipes β-Carboline alkaloids from the leaves of Trigonostemon lii Y.T. Chang β-Carboline alkaloids from the leaves of Trigonostemon lii Y.T. Chang