Piplartine-dimer A, a new alkaloid from Piper tuberculatum

Piplartine-dimer A, a new alkaloid from Piper tuberculatum A New Dihydropiplartine and Piplartine Dimer from Piper rugosum Alkaloids from Piper puberullum Piperdardine, a piperidine alkaloid from Piper tuberculatum Cytotoxic Pyridone Alkaloids from the Leaves of Piper aborescens Cytotoxic Pyridone Alkaloids from the Leaves of Piper aborescens Piplaroxide, an Ant-Repellent Piperidine Epoxide from <i>Piper tuberculatum</i> Alkaloids of Piper longum Linn—I Cenocladamide, a dihydropyridone alkaloid from Piper cenocladum Amides from Piper tuberculatum fruits