<div><p>Activity-guided isolation of dried seeds of <i>Jatropha curcas</i> L. led to the isolation of two new lignans along with eight known compounds. These compounds were determined by spectroscopic analysis to be jatrophasin C (<b>1</b>), jatrophasin D (<b>2</b>), β-sitosterol (<b>3</b>), jatrophasin A (<b>4</b>), daucosterol (<b>5</b>), isoamericanol A (<b>6</b>), ( ± )-3,3′-bisdemethylpinoresinol (<b>7</b>), 7′-epi-sesamin-dicatechol (<b>8</b>), isoprincepin (<b>9</b>) and americanol A (<b>10</b>), of which <b>1</b> and <b>2</b> were new compounds. The antioxidative activities along with peroxisome proliferator-activated receptor gamma exciting activity of these compounds were also determined.</p></div
