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Innovation application: Synthesis of Betulonic Acid

Title Synthesis of Betulonic Acid

Betulin and betulonic acid are lupane type triterpenoid. These compounds and their derivatives are found as effective drug candidates in the last decade. Depending on the substituents these compounds demonstrate anti-virus, anti-cancer or anti-infammatory activity.

Keywords betulonic acid, betulin
Authors Māris Turks
Department (14A00) Organiskās ķīmijas tehnoloģijas institūts
Statistical Classification of Economic Activities, NACE 2 Manufacture of chemicals and chemical products
Manufacture of basic pharmaceutical products and pharmaceutical preparations
Scientific research and development
Other professional, scientific and technical activities
Description of the technology

We have elaborated and approbated method for synthesis of betulonic acid by oxidation of betulin with Jones reagent. We have found, that crude betulonic acid can be effectivelly purified by transforming it to cyclohexylammonium salt and sequential conversion to betulonic acid with high purity (more than 97.5% according to HPLC).

Fig. 1. The method for synthesis of betulonic acid.

Applications An intermediate for synthesis of lupane derivatives, e.g., for medicinal chemistry purposes.

The main advantages of our provided procedure is reduced amount of highly volatile solvents, as well as simplified extraction of the product.

Technology Readiness Level Actual system proven in operational environment
Partnership offer • Service contracts.
ID 128
Contact information Linda Šufriča, e-mail: inovacijas@rtu.lv; phone.: 28442736