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Iridoid and bis-iridoid glucosides from the fruit of Gardenia jasminoides
Hai-Bo Li1, Yang Yu2, Zhen-Zhong Wang3
1Nanjing University of Chinese Medicine, Nanjing 210000, PR China.
Abstract:
Three new iridoid glucosides, 6″-O-trans-feruloylgenipin gentiobioside (1), 2'-O-trans-caffeoylgardoside (2), jasmigeniposide A (3), and one new bis-iridoid glucoside, jasmigeniposide B (4), along with six known analogues (5-10), were isolated from the fruit of Gardenia jasminoides. Their structures were established on the basis of spectroscopic analyses and chemical methods. Anti-virus activity of isolated compounds were evaluated in vitro and only compound 9 showed moderate inhibitory activity against H1N1 with 50% effective concentration (EC50) value of 104.36 μM, and selective index (SI) value greater than 4.79.
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