Phytochemical studies on Skimmia wallichii resulted in the isolation o
f skimmiwallichin, skimmiwallin and a new cycloartanol type compound s
kimmiwallinin. The structure of skimmiwallinin is elucidated as 3 oxy-
24-methyl-24-ethyl-9,19-cyclolanost-25(26)-ene on the basis of spectra
l studies. The structures of skimmiwallichin and another tetracyclic t
riterpene, now named skimmiwallin, were revised and established to be
3 -methoxy-24,24-diethyl-9,19-cyclolanost-25(26)-ene and 3 eta-methoxy
-25-ethyl-9,19-cyclolanost-24(24')-ene, respectively. Copyright (C) 19
96 Elsevier Science Ltd