Isolation of lingzhifuran A and lingzhilactones D–F from Ganoderma lucidum as specific Smad3 phosphorylation inhibitors and total synthesis of lingzhifuran A
作者:Wei-Yi Ding、Jun Ai、Xin-Long Wang、Fayang G. Qiu、Qing Lv、Ping Fang、Fan-Fan Hou、Yong-Ming Yan、Yong-Xian Cheng
DOI:10.1039/c6ra17900b
日期:——
(2–4), four new phenolic meroterpenoids were isolated from the fruiting bodies of Ganoderma lucidum. Their structures were identified by spectroscopic data. Chiral HPLC analysis indicates the racemic nature of 2–4. Chiral separation followed by X-ray diffraction analysis discloses the absolute configuration of (−)-2. Compounds 1 and 2 could selectively inhibit TGF-β1-induced Smad3 phosphorylation in rat
从灵芝子实体中分离出四种灵芝呋喃A(1)和灵芝内酯D–F(2-4)。它们的结构通过光谱数据鉴定。手性HPLC分析表明2–4的外消旋性质。手性分离,然后进行X射线衍射分析,揭示了(-)- 2的绝对构型。化合物1和2可以选择性抑制TGF-β1诱导的大鼠肾小管上皮细胞Smad3磷酸化,代表选择性Smad3激活抑制剂的新型支架。全合成伴随体内啮齿动物实验揭示了1对肾脏纤维化的抗纤维化活性。最后,一个合理的生物合成途径1中提出的。