[Studies on the flavonoids from the flowers of Hylocereus undatus].
[Studies on the flavonoids from the flowers of Hylocereus undatus].
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发表时间：
2011-05
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通讯作者：
Yan-Ni Yi;Xinrong Wu;Ying Wang;W. Ye;Qing-Wen Zhang
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作者：
Yan-Ni Yi;Xinrong Wu;Ying Wang;W. Ye;Qing-Wen Zhang
OBJECTIVE To study the chemical constituents of the flowers of Hylocereus undatus. METHODS The constituents were isolated and purified by various modern chromatographic techniques. The structures of the compounds were elucidated based on their physicochemical properties and spectral analyses. RESULTS Thirteen compounds were isolated from the flowers of H. undatus. Their structures were elucidated as kaempferol (1), quercetin (2), isorhamnetin (3), kaempferol 3-O-alpha-L-arabinfuranoside (4), kaempferol 3-O-beta-D-glucopyranoside (5), quercetin 3-O-beta-D-glucopyranoside (6), isorhamnetin 3-O-beta-D-glucopyranoside (7), kaempferol 3-O-beta-D-galactopyranoside (8), quercetin 3-O-beta-D-galactopyranoside (9), kaempferol 3-O-beta-D-rutinoside (10), isorhamnetin 3-O-beta-D-rutinoside (11), kaempferol 3-O-alpha-L-rhamopyranosyl-(1 --> 6)-beta-D-galactopyranoside (12), and isorhamnetin 3-O-alpha-L-rhamopyranosyl-(1 --> 6)-beta-D-galactopyranoside (13). CONCLUSION All the compounds are isolated from this plant for the first time.
