About: Phytochemical investigation of the aerial parts of Euphorbia erythradenia Bioss. (Euphorbiaceae), one of Iranian endemic Euphorbias, with particular attention to triterpene constituents, using methanol solvent extraction was carried out. Five known triterpenes, including four cycloartanes and oleanolic acid, were isolated for the first time and identified using NMR and Mass techniques. Anti HIV activity of the isolated triterpenes and ingenoid diterpenes was evaluated using single cycle replicable HIV-1 (SCR HIV-1) virions. Molecular features of the most active compound (IC(50) = 0.008 μM, CC(50) = 3.264 μM, TI = 380.64), which showed higher therapeutic index than nevirapine, was assessed using molecular docking. Docking studies demonstrated three hydrogen bonds between HIV-1 virion protease active site and this compound with a distance less than 3 A° which can be responsible for the observed anti HIV-1 activity.   Goto Sponge  NotDistinct  Permalink

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  • Phytochemical investigation of the aerial parts of Euphorbia erythradenia Bioss. (Euphorbiaceae), one of Iranian endemic Euphorbias, with particular attention to triterpene constituents, using methanol solvent extraction was carried out. Five known triterpenes, including four cycloartanes and oleanolic acid, were isolated for the first time and identified using NMR and Mass techniques. Anti HIV activity of the isolated triterpenes and ingenoid diterpenes was evaluated using single cycle replicable HIV-1 (SCR HIV-1) virions. Molecular features of the most active compound (IC(50) = 0.008 μM, CC(50) = 3.264 μM, TI = 380.64), which showed higher therapeutic index than nevirapine, was assessed using molecular docking. Docking studies demonstrated three hydrogen bonds between HIV-1 virion protease active site and this compound with a distance less than 3 A° which can be responsible for the observed anti HIV-1 activity.
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  • Virology
  • Hydroxy acids
  • Diazepines
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