Two novel flavanones from Greigia sphacelata

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) a nd 5,3'-dihydroxy-6,7,4',5'-tetramethoxyflavanone (2), as well as eight kno wn compounds-1,3-O-di-trans-p-coumaroylglycerol (3), 1-O-trans-p-coumaroylg lycerol (4), a mixture of 1-(omega -feruloyldocosanoyl)glycerol (5) and 1-( omega -feruloyltetracosanoyl)glycerol (6), trans-ferulic acid 22-hydroxy-do cosanoic acid ester (7), arborinone (8), arborinol (9), and isoarborinol (1 0)-were isolated.