abstract |
FIELD: organic chemistry of natural compounds. n SUBSTANCE: invention relates to novel compounds, namely, to N'-{N-[3-oxo-lupan-28-oyl]-9-aminononanoyl}-3-amino-3-phenylpropionic acid and its salts of the formula (I) given in the invention description. This compound shows antiviral activity, in particular, anti-HIV activity, and immunostimulating activity. Compounds of the formula (I) are nontoxic and can be obtained from betulin isolated from birch bark as available raw with the high yield. n EFFECT: valuable medicinal properties of compound. n 4 tbl, 9 ex |