betulinic acid methyl ester
National Institutes of Health
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The distribution of bioorganic components and compounds of anthropogenic and mixed origin in the bottom sediments (BSs) in…
New derivatives of betulin, betulinic acid methyl ester, and their acetate analogs containing 1,2,3-triazole fragments in the C…
Four new lanostane-type triterpenes, 24-ethyl-3beta-methoxylanost-9(11)-en-25-ol (1), 3beta-methoxy-24-methylenelanost-9(11)-en…