作者:Dae-Young Lee、Hyung-Jun Noh、Jehun Choi、Kyeong-Hee Lee、Min-Ho Lee、Ji-Hyun Lee、Yoonpyo Hong、Seung-Eun Lee、Seung-Yu Kim、Geum-Soog Kim
DOI:10.3390/molecules18043725
日期:——
A new cycloartane-type triterpene glycoside, agroastragaloside V (1) was isolated from the roots of Astragalus membranaceus. The structure was identified as 3-O-β-(2'-O-acetyl)-D-xylopyranosyl-6-O-β-D-glucopyranosyl-(24S)-3β,6α,24α,25-tetrahydroxy- 9,19-cyclolanostane, by means of spectroscopic methods, including HR-FAB/MS, 1D NMR (1H, 13C, DEPT), 2D NMR (gCOSY, gHSQC, gHMBC, NOESY), and IR spectroscopy. Four known cycloartane glycosides, namely, agroastragaloside I (2), agroastragaloside II (3), isoastragaloside II (4) and astragaloside IV (5) were also isolated. All isolated compounds were tested for the ability to inhibit LPS-induced nitric oxide production in RAW264.7 macrophages.
从膜荚黄芪的根中分离出一种新的环木菠萝烷类三萜糖苷--黄芪皂苷 V(1)。其结构被确定为 3-O-β-(2'-O-乙酰基)-D-木酰基吡喃糖基-6-O-β-D-吡喃葡萄糖基-(24S)-3β,6α,24α,25-四羟基-9,19-环木菠萝烷、通过光谱方法,包括 HR-FAB/MS、1D NMR(1H、13C、DEPT)、2D NMR(gCOSY、gHSQC、gHMBC、NOESY)和红外光谱。此外,还分离出了四种已知的环木菠萝烷苷,即黄芪皂苷 I (2)、黄芪皂苷 II (3)、异黄芪皂苷 II (4) 和黄芪皂苷 IV (5)。测试了所有分离出的化合物抑制 RAW264.7 巨噬细胞中 LPS 诱导的一氧化氮产生的能力。