Abstract

As part of our continuing phytochemical investigations of plants from arid environments in Chile, the aerial parts of Greigia sphacelata were examined. Two novel flavanones, 5,7,3'-trihydroxy-6,4',5'-trimethoxyflavanone (1) and 5,3'-dihydroxy-6,7,4',5'-tetramethoxyflavanone (2), as well as eight known compounds-1,3-O-di-trans-p-coumaroylglycerol (3), 1-O-trans-p-coumaroylglycerol (4), a mixture of 1-(omega -feruloyldocosanoyl)glycerol (5) and 1-(omega -feruloyltetracosanoyl)glycerol (6), trans-ferulic acid 22-hydroxy-docosanoic acid ester (7), arborinone (8), arborinol (9), and isoarborinol (10)-were isolated.