作者:Yuan-Yuan Li、Ping Liu、Yang Tang、Hong-Mei Li、Ya-Ling Tang、Xin-Hua Liang、Ya-Jie Tang
DOI:10.1002/hlca.201200235
日期:2013.4
The four new cerebrosides 1–4 possessing a unique C18 9‐methylsphinga‐4,8‐dienine‐related moiety and a cyclic octapeptide, 5, possessing alternating proline and glycine moietes were isolated from the Tuber indicum fermentation mycelium. Their structures were established on the basis of a spectroscopic analysis including NMR and HR‐ESI‐MS, as well as an acidic methanolysis experiment. To the best of
这四个新脑苷1 - 4具有唯一的C 18 9-methylsphinga -4,8- dienine相关部分和环状八肽,5,具有交替的脯氨酸和甘氨酸moietes是从分离块茎野菊发酵菌丝。它们的结构是在包括NMR和HR-ESI-MS在内的光谱分析以及酸性甲醇分解实验的基础上建立的。就我们所知,本研究中鉴定出的脑苷与从印度块茎子实体分离出的脑苷有很大不同。另外,这是第一次从块茎属中分离出环状肽。