| 摘要 |
FIELD: chemistry of natural compounds, chemical technology, pharmaceutical industry. ^ SUBSTANCE: invention relates to the improved method for preparing betulinic acid from betulonic acid. Method is carried out by reduction of betulonic acid with sodium boron hydride in water. Method provides simplifying the process, declining cost of the process for preparing betulinic acid and enhancing ecological safety of the process. Invention can be used in producing antitumor and anti-HIV medicinal preparations. ^ EFFECT: improved preparing method. ^ 1 cl, 2 ex |
