Isolation and structure elucidation of a new flavonol glycoside from Sabia Parviflora
2021
Sun, Qingwen | Pan, Guoji | Xu, Wenfen | Lu, Xian | Bai, Caihong | Liu, Mengge | Chen, Yinrui
A new flavonol glycoside named Sabiapside A (1), along with four known compounds, quercetin-3-O-gentiobioside (2), camellianoside (3), isobariclisin-3-O- rutinoside (4), tsubakioside A (5), was isolated from Sabia parviflora. Their structures were elucidated by extensive spectroscopic analysis including MS, UV, IR and NMR data. The antioxidant activities of these glycosides evaluated by ABTS⁺ and DPPH radical scavenging reaction was higher than that of vitamin C used as the reference antioxidant.
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