Two new securinega-type alkaloids, isobubbialine and epibubbialine, we
re isolated from the leaves of Phyllanthus amarus, as well as the thre
e known alkaloids, phyllanthine, securinine and norsecurinine. The str
uctures of the unknown compounds were determined by means of UV, IR, m
ass and NMR spectroscopy. Copyright (C) 1996 Elsevier Science Ltd