Penicacids A–C, three new mycophenolic acid derivatives and immunosuppressive activities from the marine-derived fungus Penicillium sp. SOF07
作者:Ziming Chen、Zhihui Zheng、Hongbo Huang、Yongxiang Song、Xuelian Zhang、Junying Ma、Bo Wang、Changsheng Zhang、Jianhua Ju
DOI:10.1016/j.bmcl.2012.02.106
日期:2012.5
Three new mycophenolic acid derivatives, penicacids A–C (), together with two known analogues, mycophenolic acid (MPA, ) and 4′-hydroxy-MPA (), were isolated from a fungus sp. SOF07 derived from a South China Sea marine sediment. The structures of compounds – were elucidated on the basis of MS and NMR (H, C, HSQC and HMBC) data analyses and comparisons with the known compounds. Structure–activity relationship
从真菌中分离出三种新的霉酚酸衍生物,青霉酸 A–C (),以及两种已知的类似物,霉酚酸 (MPA, ) 和 4'-羟基-MPA ()。 SOF07 源自南海海洋沉积物。化合物的结构 – 根据 MS 和 NMR(H、C、HSQC 和 HMBC)数据分析以及与已知化合物的比较来阐明。化合物的结构-活性关系研究——重点关注肌苷单磷酸脱氢酶抑制,揭示了 MPA C-4' 处的羟基化、C-7-OH 处的甲基化、C-2'/C-3' 双键的双羟基化降低了生物活性而 C-4' 处的葡萄糖基羟基化与生物活性的相关性与 MPA 观察到的相当。