Friedelin, a Triterpenoid Pentacyclic from the Leaves of Calophyllum soulattri Burm.f. (Guttiferae).
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Furthermore, by using the anti-malarial activity to follow separation, the ethyl acetate fraction was separated by combination of column chromatography to yield an active compound..
The Flavanone compound with anti diabetic activity was isolated from ethyl acetate extract of Artocarpus communis leaves using column chromatography techniques.. The structure of
Selanjutnya , dilakukan pemisahan dan pemurnian senyawa aktif dari fraksi etil asetat, diperoleh 3,22,23- trihidroksiolean-12-ena yang menunjukkan nilai IC50 4,3 µg/mL terhadap
The ethyl acetate extract of mahkota dewa bark which was isolated by silica gel column chromatography and HPLC semipreparative gave benzophenone glucoside
For purification of products, column chromatography was performed on silica gel 100-200 mesh using ethyl acetate and hexane mixture as eluent.. Evaporation of solvents was performed
Evaporation of the solvent under reduced pressure and purification of the crude material by silica gel column chromatography petroleum ether/ethyl acetate furnished the products 3/5
Evaporation of the solvent and purification of the residue on a silica gel column using ethyl acetate-hexane 1:20 as eluent furnished a diastereomeric mixture of the alcohol 10
