Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan.
Faculty of Pharmacy, Yasuda Women's University, 6-13-1, Yasuhigashi, Asaminami-ku, Hiroshima, 731-0153, Japan.
J Nat Med. 2022 Sep;76(4):832-841. doi: 10.1007/s11418-022-01643-0. Epub 2022 Aug 6.
Two previously undescribed megastigmane glucosides, (3S)-3-hydroxy-4-oxo-7,8-dihydro-β-ionone-3-O-β-D-glucopyranoside (1), (3S)-3-hydroxy-4-oxo-β-ionone-3-O-β-D-glucopyranoside (2), an apocarotenoid glucoside named equiseoside A (3) and an unusual aromatic compound with a glucose-fused skeleton named equiseoside B (4), together with 35 known compounds (5-39) were isolated from the aerial parts of Equisetum sylvaticum. The structures of these compounds were elucidated by spectroscopic methods, including 1D and 2D NMR, IR, CD, and HR-MS.
从木贼（Equisetum sylvaticum）的地上部分中分离得到了四种新的倍半萜葡萄糖苷，（3S）-3-羟基-4-氧代-7,8-二氢-β-紫罗兰酮-3-O-β-D-吡喃葡萄糖苷（1）、（3S）-3-羟基-4-氧代-β-紫罗兰酮-3-O-β-D-吡喃葡萄糖苷（2）、一种裂环类胡萝卜素葡萄糖苷命名为 equiseoside A（3）和一种具有葡萄糖融合骨架的不寻常芳香化合物命名为 equiseoside B（4），以及 35 种已知化合物（5-39）。这些化合物的结构通过光谱方法，包括 1D 和 2D NMR、IR、CD 和 HR-MS 来阐明。
