Collect. Czech. Chem. Commun.
1989, 54, 1928-1939
https://doi.org/10.1135/cccc19891928
Conformation of ring A in triterpenoid ketones. Carbon-13 chemical shifts and spin-lattice relaxation times of lupane and 18α-oleanane derivatives
Miloš Buděšínskýa and Jiří Klinotb
a Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, 166 10 Prague 6
b Department of Organic Chemistry, Charles University, 128 40 Prague 2
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