
TY  - JOUR
A1  - Wilkins, AL 
A1  - Bremer, J 
A1  - Ralph, J 
A1  - Holland, PT 
A1  - Ronaldson, KJ 
A1  - Jager, PM 
A1  - Bird, PW 
T1  - A One- and Two-Dimensional <sup>13</sup>C and <sup>1</sup>H N.M.R. Study of Some Triterpenes of the Hopane, Stictane and Flavicene Groups
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1989
VL  - 42
IS  - 2
SP  - 243
EP  - 257
KW  - 
UR  - https://doi.org/10.1071/CH9890243 
N2  - The phase sensitive two-dimensional (2D) 13C-1H heteronuclear correlated and double quantum filtered cosy n.m.r. spectra of the triterpenes 7&#946;-acetoxyhopan-22-ol and 2 &#945;,3 &#946;,22 &#945;- triacetoxystictane have been recorded at a resolution sufficient for the complete assignment of their proton resonances. Revisions to some of the methylene proton resonances of 7&#946;-acetoxyhopan-22-ol proposed elsewhere are discussed, and assignments for a series of flavicene and stictane  triterpenes are presented. 2D, n.m.r. analyses of a new triterpene isolated from the extracts of the lichen Pseudocyphellaria coronata revealed it to be 22  &#945;-hydroxystictano-25,3 &#946; lactone. 
ER  -

