20066-05-1Relevant articles and documents
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Ruzicka,Isler
, p. 506,519 (1936)
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First examples of hydroxycyclopropanation in the series of lupane triterpenoids
Odinokov,Shakurova,Khalilov,Dzhemilev
, p. 1464 - 1467 (2009)
Hydroxycyclopropanation at the ester group in the series of lupane triterpenoids was performed for the first time using 3,3-ethylenedioxybetulonic acid methyl ester and its 20,29-dihydro analog as substrates.
Synthesis of oxadiazole derivative of pentacyclic triterpenoid and its biological activity
Rasul, Mohammed Golam
, p. 1143 - 1147 (2019)
Triterpenoid betunilic acid is extracted from outer bark of Biscofia javanica blume from Darjeeling hilly region and carried out transformative reaction to introduce oxadiazole moiety to ring A of the triterpenoid which was identified as 28-carbomethoxy lupan (2,3-c)-1′,2′,5′-oxadiazole. The derivative obtained has been selected for its antibacterial and fungicidal activity at different concentrations with respect to the parent compound. The structures of these compounds were established based on spectroscopic (UV, IR, NMR) analysis.