Three racemic butanolides, majorenolide (1), majorynolide (2), and majoranolide (3), with 18 known compounds, including ten butanolides, i.e., litsenolide A(2) (4), litsenolide B(2) (5), litsenolide C(1) (6), litsenolide C(2) (7), hamabiwalactone A (8), hamabiwalactone B (9), litseakolide A (10),
Bioassay-guided fractionation of the chloroform-soluble fraction from the stem wood of Formosan Lindera communis led to the isolation of two new cytotoxic butanolides, lincomolide C (1), lincomolide D (2), as well as two new secobutanolides, secolincomolide A (3), secolincomolide B (4), together