Four new cytotoxic neolignans, machilusol A (1), machilusol C (3), machilus
ol D (4), machilusol E (5) as well as two new inactive neolignans, machilus
ol B (2) and machilusol F (6), were isolated from the stem wood of Machilus
obovatifolia. All structures were identified by means of spectroscopic ana
lysis.