Lee Hyoung Jae, Watanabe Bunta, Nakayasu Masaru, Onjo Michio, Sugimoto Yukihiro, Mizutani Masaharu
a Graduate School of Agricultural Science , Kobe University , Kobe , Japan.
b Institute for Chemical Research , Kyoto University , Uji , Japan.
Biosci Biotechnol Biochem. 2017 Dec;81(12):2253-2260. doi: 10.1080/09168451.2017.1381016. Epub 2017 Oct 13.
Fifteen steroidal saponins 1-15, which include 4 furostanol glycosides 1-3 and 15, and 11 spirostanol glycosides 4-14, were isolated from the tubers and leaves of lesser yam (Dioscorea esculenta, Togedokoro). Their structures were identified by nuclear magnetic resonance and liquid chromatography mass spectroscopy. Four steroidal saponins 9, 11, 14, and 15 were found to be novel compounds.
从山药(Dioscorea esculenta,Togedokoro)的块茎和叶子中分离出15种甾体皂苷1-15,其中包括4种呋甾烷醇糖苷1-3和15,以及11种螺甾烷醇糖苷4-14。通过核磁共振和液相色谱质谱对它们的结构进行了鉴定。发现4种甾体皂苷9、11、14和15是新化合物。