Phenylpropanoid triesters from Daucus glaber

Three new phenylpropanoid triesters, glaberins A-C (1-3), were isolated from the leaves and stems of Daucus glaber (Forssk.) Thell. (Apiaceae). Their gross structures were determined on the basis of 2D NMR experiments, and the absolute structure of 1 by X-ray crystallography and chemical methods. Glaberins A (1) and B (2) were evaluated for cytotoxicity against P-388 murine lymphocytic leukemia cells.