A new triterpenoid fom Radix Pittospori

To investigate chemical constituents from Radix Pittospori, chloroform extract of the roots was subjected to column chromatography with various chromatographic techniques.  The structures were elucidated on the basis of physico-chemical property and spectral analysis.  Two triterpenoids were identified as 22-acetyl- 21-(2-acetoxy-2-methylbutanoyl)-R₁-barrigenol (1) and 3α-hydroxyl-20-demethylisoaleuritolic-14 (15)-ene-28, 30- dioic acid (2).  Compound 1 is a new triterpene and compound 2 is isolated from this plant for the first time.