STUDIES ON THE CONSTITUENTS OF PHLOMIS SPECIES .2. IRIDOID GLYCOSIDES FROM PHLOMIS-YOUNGHUSBANDII ROOTS
STUDIES ON THE CONSTITUENTS OF PHLOMIS SPECIES .2. IRIDOID GLYCOSIDES FROM PHLOMIS-YOUNGHUSBANDII ROOTS
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DOI：
10.1016/s0031-9422(00)90473-4
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发表时间：
1994-07-01
期刊：
影响因子：
3.8
通讯作者：
TANAKA, O
中科院分区：
文献类型：
--
作者：
KASAI, R;KATAGIRI, M;TANAKA, O
从Phlomis younghusbandii根中分离得到两种新的环烯醚萜苷，分别命名为草苷I和II，以及四种已知的环烯醚萜苷：山栀苷甲酯、大麦素、芝麻苷和喷茎苷。通过光谱和化学方法阐明了草苷I和II的结构。此外，最近报道的来自Phlomis rotata的7-epiphlomiol结构作为phlomiol的7-差向异构体被证明是不正确的，并且与phlooside II相同，而不是phloyoside I（= 7-epiphlomiol）。
Two new iridoid glucosides named phloyosides I and II, and four known iridoid glucosides, shanzhiside methyl ester, barlerin, sesamoside and penstemoside were isolated from the roots of Phlomis younghusbandii. The structures of phloyosides I and II were elucidated by spectroscopic and chemical methods. In addition, the structure of 7-epiphlomiol recently reported from Phlomis rotata as the 7-epimer of phlomiol was shown to be incorrect and to be the same as that of phloyoside II and not phloyoside I (= 7-epiphlomiol).