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Showing 1 to 5 of 5 for “"Pentacyclic triterpenes"”.
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Antimycobacterial, docking and molecular dynamic studies of pentacyclic triterpenes from Buddleja saligna leaves
… plant endemic to South Africa. Two isomeric pentacyclic triterpenes, oleanolic acid and ursolic acid, were isolated from the leaves of B. saligna using silica gel column chromatography. Compounds oleanolic acid and ursolic acid were subjected to derivatization with acetic anhydride in the …
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Chemical Studies of some Fungi
… spectral grounds these are proposed to be the pentacyclic triterpenes, lupa-15,19(22)-diene (33) and lup-19(22)-ene (34) respectively. 14,15-Epoxy-2-ketomanoyl oxide (44) has been microbiologically hydroxylated by Calonectria decora to form 1β,7α-dihydroxy-14,15-epoxy-2-ketomanoyl oxide (45). …
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Design, synthesis, and biological evaluation of Antimycobacterial agents from plant derived Betulinic acid, Oleanolic acid and their derivatives
… by P-XRD, TGA, and SEM. The isolated triterpenes and their synthesized derivatives were then evaluated for anti-mycobacterial activity (MABA test, against H37RV [ATCC27294] strain), cytotoxicity (MTT test using human embryonic kidney [HEK293] and human hepato-cellular carcinoma [HepG2] …
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Phytochemical and cytotoxicity studies on Arbutus pavarii, Asphodelus aestivus, Juniperus phoenicea and Ruta chalepensis growing in Libya
… arbutin (53) and two pentacyclic triterpenes, methyl betulinate (89) and ursolic acid (88) from A. pavarii leaves. Twenty-three isolated compounds were tested for their cytotoxicity against the most sensitive cancer cell lines. Eight compounds revealed good cytotoxic …
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Part A: Investigation of a newly identified plant Hernandia didymantha Donn, synthesis of phenethyl cinnamide Part B: Selective removal of ascaridol from the essential oil of Chenopodium ambrosioides var ambrosioides Part C: Synthesis of canophyllol analogues
… Since ursolic acid and canophyllol are both pentacyclic triterpenes a series of analogues of canophyllol have been synthesized and characterized by 1H NMR, 13C NMR, MS and their melting points. These compounds in which we made relatively simple changes in the functionality at C-3 and C-28 of …