Teasterone-3-<i>O</i>-β-<scp>D</scp>-glucopyranoside, A New Conjugated Brassinosteroid Metabolite from Lily Cell Suspension Cultures and Its Identification in Lily Anthers
The new brassinosteroid conjugate, teasterone-3-O-β-D-glucopyranoside, was found as a metabolite of teasterone in lily cell suspension cultures. Its structure was determined by means of FAB-MS and 1H-NMR upon comparison with the authentic compound. Furthermore, its presence in lily anthers was confirmed by FAB-MS and LC-APCI-SIM data. This is the first natural brassinosteroid conjugate glucosylated at a hydroxyl group in ring A.
在百合细胞悬浮培养物中发现了一种新的黄铜类固醇共轭物--茶甾酮-3-O-β-D-吡喃葡萄糖苷,它是茶甾酮的代谢产物。通过 FAB-MS 和 1H-NMR 与真品化合物进行对比,确定了其结构。此外,FAB-MS 和 LC-APCI-SIM 数据也证实了百合花药中存在这种物质。这是第一种在 A 环的羟基上发生葡糖基化的天然黄铜类固醇共轭物。
Abe, Hiroshi; Honjo, Chika; Kyokawa, Yoshimasa, Bioscience, Biotechnology and Biochemistry, 1994, vol. 58, # 5, p. 986 - 989