SCHEDULED MAINTENANCE
Three new D:A-friedooleananes isolated from the stem bark of Euonymus revolutus Wight (Celastraceae) were established to be 2α-hydroxy-3-oxo-D:A-friedooleanan-28-oic acid, 3α-hydroxy-2-oxo-D:A-friedooleanan-28-oic acid, and 29-hydroxy-3-oxo-D:A-friedooleanan-28-oic acid on the basis of spectroscopic data and chemical interconversions.
N. S. Kumar, P. M. Muthukuda and J. K. MacLeod, J. Chem. Soc., Perkin Trans. 1, 1985, 685 DOI: 10.1039/P19850000685
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