Synthesis of New Ursane-Type Hybrids with Morpholinomethyl-, Dialkylamino-, and Hydroxyl-Substituted Azoles
2022
Semenova, M. D. | Popov, S. A. | Shul’ts, E. E. | Turks, M.
Ursane-type triterpenoids containing functionalized heterocyclic substituents were chemically modified. Aminomethylation of ursane hybrids with 1,3,4-oxadiazole- and 1,2,4-triazolethiones occurred smoothly to form new potentially biologically active derivatives of pentacyclic triterpenoids containing 4-morphlinomethyl-5-thioxo-1,3,4-oxadiazole or 4-morpholinomethyl-5-thioxo-1,2,4-triazole substituents. Nucleophilic substitution of a methanesulfonyl group in a 1,3,4-oxadiazole substituent of a pentacyclic triterpenoid synthesized ursane-type hybrids with 2-hydroxyoxadiazoles and 2-dialkylaminooxadiazoles.
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