4.4 Article

Two new constituents from the aerial parts of Salvia miltiorrhiza Bge

期刊

NATURAL PRODUCT RESEARCH
卷 37, 期 20, 页码 3418-3425

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TAYLOR & FRANCIS LTD
DOI: 10.1080/14786419.2022.2078324

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Salvia miltiorrhiza; neolignan; phenolic acid; NO production; antioxidant activity

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Two new constituents, salignan A and salside A, along with two known compounds, have been isolated from the aerial parts of Salvia miltiorrhiza Bge. Compound salignan A and salside A showed moderate inhibitory effects on NO production, while compound 4 exhibited moderate antioxidant activity.
Two new constituents: a neolignan, salignan A (1) and a phenolic acid, salside A (2), along with two known compounds (3, 4) have been isolated from the aerial parts of Salvia miltiorrhiza Bge. All structures were assigned on the basis of detailed spectroscopic analyses. The absolute configuration of 1 was characterised by electronic circular dichroism (ECD) spectroscopy. Compounds 1 and 3 exhibited moderate inhibitory effects on nitric oxide (NO) production in LPS-induced RAW264.7 cells, and the IC50 values are 11.58 and 10.73 mu M, respectively. Compound 4 displayed moderate antioxidant activity to scavenge DPPH and ABTS radicals, and the IC50 values are 7.96 and 1.10 mu M, respectively.

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