Saleem, Muhammad Kim, Hyoung Ja han, Cg Kyun Han Jin, Changbae Lee, Yong Sup 2024-01-21T03:01:11Z 2024-01-21T03:01:11Z 2021-08-31 2006-07 0031-9422 https://pubs.kist.re.kr/handle/201004/135387 A butanol fraction, from the methanolic extract of Opuntia ficus-indica var. saboten, on purification either by preparative TLC or reversed phase HPLC, yielded three chemical components: isorhamnetin 3-O-(6"-O-E-feruloyl)neohesperidoside (1), (6R)-9,10-dihydroxy-4,7-megastigmadien-3-one-9-O-beta-D-glucopyranoside (2) and (6S)-9,10-dihydroxy-4,7-megastigmadien-3-one-9-O-beta-D-glucopyranoside (3) along with 15 known compounds. Structures of compounds (1-3) were elucidated by aid of spectroscopic analyses. The absolute stereochemistry in compounds 2 and 3 was established with the help of CD data analysis and comparison with the literature data analysis. In a DPPH radical scavenging assay, compound 1 showed moderate inhibitory activity (IC50 = 45.58 mu g/ml). (c) 2006 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD PEAR CACTUS OPUNTIA MEGASTIGMANE GLYCOSIDES CONSTITUENTS FLAVONOIDS STEMS FLOWERS LEAVES FRUITS Secondary metabolites from Opuntia ficus-indica var. saboten Article 10.1016/j.phytochem.2006.04.009 1 PHYTOCHEMISTRY, v.67, no.13, pp.1390 - 1394 PHYTOCHEMISTRY 67 13 1390 1394 scie scopus 000239972600016 2-s2.0-33746513213 Biochemistry & Molecular Biology Plant Sciences Biochemistry & Molecular Biology Plant Sciences Article PEAR CACTUS OPUNTIA MEGASTIGMANE GLYCOSIDES CONSTITUENTS FLAVONOIDS STEMS FLOWERS LEAVES FRUITS Opuntia ficus-indica var. saboten Cactaceae isorhamnetin 3-O-(6 &apos &apos -O-E-feruloyl)neohesperidoside (6R)-9,10-dihydroxy-4,7-megastigmadiene-3-one-9-O-beta-D-glucopyranoside (6S)-9,10-dihydroxy-4,7-megastigmadiene-3-one-9-O-beta-D-glucopyranoside