METHOD OF PREPARING R-TETRAOL ELICITING ANTITUMOR ACTIVITY

摘要

FIELD: chemistry, pharmacology. ! SUBSTANCE: active component is isolated from natural product. Galipot of coniferous strains of species Pinus sibirica and/or Pinus cembra, and/or of genus Abies, and/or of genus Larix are used as natural product and labdanoido-diterpenic acids are isolated followed by camphor addition to isolated fraction and effect on prepared mixture by gamma-radiation up to formation of R-tetraol structure. Invention can be used for antitumor preparation preparing. ! EFFECT: improved method of preparing, decreased cost of product. 1 tbl, 5 dwg