Xin-Rui Li's research while affiliated with Chengdu University Of Traditional Chinese Medicine and other places
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Publications (4)
This study investigated the chemical components from the florets of Carthamus tinctorius. Five compounds were isolated from C. tinctorius by column chromatography with silica gel and toyopearl HW-40 F, preparative thin-layer chromatography(TLC), and semi-preparative reverse phased high performance liquid chromatography(RP-HPLC). Their structures we...
In this phytochemical study, a novel arborinane-type triterpenoid glycoside (1) and three known megastigmanes (2–4) were isolated from the dried roots of Cyathula officinalis K.C.Kuan. The structures of these compounds were elucidated using NMR spectroscopy. This is the first report of arborinane-type triterpenoids in the Amaranthaceae family. Amon...
Five previously undescribed polyacetylene glucosides, namely, four C10- and one C14-acetylenes, together with three known analogues, were isolated from the florets of Carthamus tinctorius L. The structures of these novel compounds were elucidated to be (5R)-5-acetoxy-8,10,12-tetradecatriyne-1-O-β-D-glucopyranoside, (2Z)-decaene-4,6,8-triyne-1-O-β-D...
Citations
... 13 C, and DEPT NMR data of compound 3 suggested that it is also a caryophyllanetype sesquiterpenoid. The signals for an anomeric proton [δ H 4.24 (d, J = 7.8 Hz)] and an anomeric carbon (δ C 104.7) revealed the existence of a β-glucosyl [25], indicating that compound 3 is a caryophyllane glycoside. In addition, the 1 H and 13 C NMR data (Tables 1 and 2 , and an olefinic quaternary carbon (δ C 140.8) in the aglycone unit. ...
