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KMID : 0616120070380010076
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Korean Journal of Pharmacognosy
2007 Volume.38 No. 1 p.76 ~ p.83
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(Triterpenoids and Flavonoids Isolated from the Leaves of Alnus firma)
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Yu Young-Beob
Miyashiro Hirotsugu
Nakamura Norio
Hattori Masao
Park Jong-Cheol
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Abstract
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In this study, three triterpenoids, two steroids and nine flavonoids were isolated from the leaves of Alnus firma Sieb. et Zucc. On the basis of spectroscopic evidences, the structures of these compounds were established as {beta}-amyrin acetate, {beta}-amyrin, {beta}-sitosterol, alnustic acid methyl ester, {beta}-sitosterol glucoside, pinocembrin, alnustinol, quercetin, quercetin-3-O-{alpha}-L-arabinofuranoside, quercetin-3-O-{alpha}-L -rhamnopyranoside, quercetin-3-O-{beta}-D-glucopyranoside, myricetin-3-O-{beta}-D-galac-topyranoside, (+)-catechin and (-)-epicatechin.
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KEYWORD
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Alnus firma, Betulaceae, triterpenoid, steroid, flavonoid
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