Triterpentrïdes De Dodonaea Viscosa

From the saponin of the stem barks of Dodonaea viscosa (L.) Jacq. (Sapindaceae) we have isolated the known genins R1-barrigenol and Jegosapogenol and two novel prosapogenins R1-barrigenol 21,22-diangelate and Jegosapogenol 21-(2,3-dihydroxy-2-methylbutyrate),22-angelate. Structures have been elucidated chiefly by spectroscopic means.