
TY  - JOUR
A1  - Breen, GJW 
A1  - Ritchie, E 
A1  - Sidwell, WTL 
A1  - Taylor, WC 
T1  - The chemical constituents of Australian <I>Flindersia</I> species. XIX. Triterpenoids from the leaves of <I>F. bourjotiana</I> F. Muell
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1966
VL  - 19
IS  - 3
SP  - 455
EP  - 481
KW  - 
UR  - https://doi.org/10.1071/CH9660455 
N2  - From the leaves of Flindersia bourjotinna F. Muell. there were isolated sitosterol, triacontanol, lupeol, germanicol, germanicone, and four new triterpenoids, the bourjotinolones A, B, and C, and bourjotone. By chemical degradation and spectroscopic methods, the structures of these substances were shown to be 21,24-epoxy-23,25-dihydroxytirucall-7-en-3one, 23,24-dihydroxytirucalla-7,25-dien- 3-one, 25-chloro-23,24-dihydroxytirucall-7-en-3-one, and 25,26,27-trisnortirucall-7- ene-3,23-dione, respectively.   Bourjotinolone C is almost certainly an artefact but bourjotinolone B and bourjotone are less likely to be. From biogenetic and N.M.R. spectral considerations, the absolute stereochemistry of the new triterpenes may be deduced. 
ER  -

