Eleven highly oxygenated meroterpenoids, named terreustoxins A - K, along with five known analogues, were isolated from the Antarctic fungus Aspergillus terreus. The structures and absolute configurations of these un-described compounds were characterized by NMR spectroscopy, single-crystal X-ray crystallography, and ECD experiments. Terreustoxins A - D are the first examples of meroterpenoids with two ortho-hydroxy groups at C-6 and C-7 in the terretonins family. Terreustoxin C and terretonin inhibited the proliferation of Con A-induced murine T cells at the concentration of 10 mu M.
基金:
Program for Changjiang Scholars of Ministry of Education of the Peoples Republic of China [T2016088]; National Natural Science Foundation for Distinguished Young Scholars [81725021]; National Science and Technology Project of China [2018ZX09201001-001-003]; Innovative Research Groups of the National Natural Science Foundation of China [81721005]; National Natural Science Foundation of China [31670354, 31870326, 81502943, 31600266]; Academic Frontier Youth Team of HUST; Integrated Innovative Team for Major Human Diseases Program of Tongji Medical College (HUST)