New cytokine production inhibitors, CJ-14, 877 (I) and CJ-14, 897 (II), were isolated from the fermentation broth of a basidiomycete, Marasmiellus sp. CL21624. Their structures were determined to be methyl-(7R, 8S)-5-(7, 8-dihydroxypropyl)pyridine-2-carboxylate and methyl(7R, 8S)-5-(8-acetoxy-7-hydroxypropyl)pyridme-2-carboxylate, respectively, by spectroscopic analyses. These compounds showed inhibitory activities for lipopolysaccharide-induced production of interleukin-1β and tumor necrosis factor-a in human whole blood with IC50 values of the range from 0.059 to 2.6 JUM.
新的细胞因子产生
抑制剂 CJ-14, 877 (I) 和 CJ-14, 897 (II) 是从担子菌 Marasmiellus sp. 的发酵液中分离出来的。 C
L21624。其结构确定为甲基-(7R,8S)-5-(7,8-二羟丙基)
吡啶-2-
羧酸酯和甲基(7R,8S)-5-(8-乙酰氧基-7-羟丙基)
吡啶-2 -
羧酸盐,分别通过光谱分析。这些化合物对人全血中脂
多糖诱导的白介素-1β和肿瘤坏死因子-a的产生具有抑制活性,IC50值范围为0.059至2.6 JUM。