
%0 Journal Article
%A Pauptit, RA 
%A Waters, JM 
%A Rowan, DD 
%A Russell, GB 
%A Connor, HE 
%A Purdie, AW 
%T The structure of 19&#945;H-Lupeol methyl ether from <I>Chionochloa bromoides</I>
%J Australian Journal of Chemistry
%D 1984/06/01
%V 37
%N 6
%P 1341-1347
%K 
%R https://doi.org/10.1071/CH9841341
%U https://www.publish.csiro.au/paper/CH9841341 
%X The structure of l9&#945;H-lupeol methyl ether isolated from Chionochloa bromoides has been determined by 13C n.m.r. spectroscopy and X-ray diffraction. Crystals of the triterpene are monoclinic, space group P21, with a 8.071(1), b 14.5477(6), c 11.6061(4) Å, &#946; 104.466(5)º, V 319.6 Å3 and Z 2. The structure was solved by direct methods, and was refined to R 0.054 for 1092 observed reflections. Previous reports of synthetic and naturally occurring 19&#945;H-lupanes are briefly discussed, as is the distribution of the chemotaxonomically discriminating triterpene methyl ethers in Chionochloa. 
