gonytolide G 在
20 % Pd(OH)2/C 、 氢气 作用下,
以
甲醇 为溶剂,
反应 1.5h,
以54%的产率得到gonytolide C
参考文献:
名称:
New dimeric and monomeric chromanones, gonytolides D–G, isolated from the fungus Gonytrichum sp.
摘要:
In the course of the screening of innate immune regulators from natural resources, we isolated new dimeric and monomeric chromanones, gonytolides D G (4-7), from Gonytrichum sp. along with a known innate immune promoter, gonytolide A (1). The structures of these compounds were determined by spectral analysis, chemical conversion, and biogenetic consideration. The compounds 4-7 were evaluated on the innate immune response, indicating that the 8,8'-linked bischromanone rings were crucial for innate immune-promoting activity. (C) 2012 Elsevier Ltd. All rights reserved.