A novel ent-pimarane-type diterpenoid from Sigesbeckia glabrescens with anti-inflammatory activity

A novel ent-pimarane-type diterpenoid from Sigesbeckia glabrescens with anti-inflammatory activity
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一种来自光肩草的新型对映吡玛烷型二萜类化合物,具有抗炎活性

DOI:
10.1080/10286020.2021.1915994
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发表时间:
2021-04
影响因子:
1.7
通讯作者:
An-Hua Wang
An-Hua Wang
中科院分区:
医学4区
文献类型:
--
作者:
Xiao-Xu Gao;Su-Zhen Jiang;Jing Wang;Jing-Ming Jia;An-Hua Wang

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摘要从光叶Sigesbeckia glabrescens Makino地上部分分离得到一个新的对映海松烷型二萜化合物Sigesbeckia J(1),沿着两个已知的二萜化合物Siegesbeckia acid(2)和ent-18-acetoxy-16 R,17-dihydroxykauran-19-oic acid(3)。根据广泛的光谱解释,阐明了它们的化学结构。对映海松烷型二萜化合物(1)的绝对构型是通过比较实验和计算的ECD光谱确定的。与阳性对照米诺环素(IC 50为32.84 μM)相比,化合物1在体外对LPS诱导的BV 2小胶质细胞产生NO具有中等的细胞生长抗炎活性,IC 50值为58.74 μM。图形摘要
Abstract A novel ent-pimarane-type diterpenoid, sigesbeckia J (1), along with two known diterpenoids, siegesbeckia acid (2) and ent-18-acetoxy-16R,17-dihydroxykauran-19-oic acid (3), were isolated from the aerial parts of Sigesbeckia glabrescens Makino. Their chemical structures were elucidated based on extensive spectroscopic interpretation. The absolute configuration of ent-pimarane-type diterpenoid (1) was determined by comparing experimental and calculated ECD spectra. Compared with the positive control minocycline (IC50 32.84 μM), compound 1 exhibited moderate cell growth anti-inflammatory activities in vitro by testing their inhibition of LPS-induced NO production in BV2 microglial cells, with IC50 value of 58.74 μM. Graphical Abstract
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发表时间: 2015-02-10
期刊: Molecules (Basel, Switzerland)
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