从Ipomoea muricata 种子的粗树脂糖苷部分中得到一种新的糖苷酸、马尿酸 D 和树脂糖苷、马尿酸 X 和 XI。
A New Glycosidic Acid, Muricatic Acid D, and Resin Glycosides, Muricatins X and XI, from the Crude Resin Glycoside Fraction of the Seeds of Ipomoea muricata.
机构信息
School of Agriculture, Tokai University.
Faculty of Pharmaceutical Sciences, Fukuoka University.
出版信息
Chem Pharm Bull (Tokyo). 2021;69(3):291-297. doi: 10.1248/cpb.c20-00905.
Alkaline hydrolysis of crude resin glycoside fraction of the seeds of Ipomoea muricata (L.) Jacq. (Convolvulaceae) yielded a new glycosidic acid, muricatic acid D; three known glycosidic acids, namely, muricatic acids A, B, and C; and three known organic acids, namely, isobutyric, 2S-methylbutyric, and 2S-methyl-3S-hydroxybutyric acid. Two new genuine resin glycosides with macrolactone structures (jalapins), muricatins X and XI, were also isolated from the fraction. Their structures were determined using spectroscopic data and chemical evidence.
Ipomoea muricata (L.) Jacq. (Convolvulaceae) 种子粗树脂糖苷部分经堿水解得到一种新的糖苷酸，即 muricatic 酸 D；三种已知的糖苷酸，即 muricatic 酸 A、B 和 C；以及三种已知的有机酸，即异丁酸、2S-甲基丁酸和 2S-甲基-3S-羟基丁酸。该部分还分离得到两种具有大环内酯结构的新真正树脂糖苷（jalapins），即 muricatins X 和 XI。它们的结构是通过光谱数据和化学证据确定的。
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