Starting from 3 -hydroxy-lup-20(29)-ene-23,28-dioic acid, isolated with high yield from the plant Schefflera octophylla (Lour.) Harms (Araliaceae), a series of amide esters and amide acids have been synthetized. All the synthetized compounds are new. Their structures were determined by the IR, MS and NMR spectroscopic method.