Collect. Czech. Chem. Commun.
1991, 56, 966-972
https://doi.org/10.1135/cccc19910966
Infrared spectra of 2α-substituted 3-oxotriterpenoids and conformation of ring A
Jiří Klinot, Stanislav Hilgard, Jakub Krijt and Petr Olšovský
Department of Organic Chemistry, Charles University, 128 40 Prague 2
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