Five new compounds from the stems of Ephedra equisetina
FITOTERAPIA(2024)
摘要
Five new compounds were identified from the stems of Ephedra equisetina Bunge. Their structures were elucidated by spectroscopic methods, involving UV, IR, NMR spectrum and HRESIMS analyses. The absolute configuration of compound 2 was proved by comparing their experimental and calculated ECD spectrum. The vitro bioactive assay of all compounds suggested that compound 1, 3, 4, 5 and 6 may have potential antiasthmatic activities.
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关键词
Ephedra equisetina Bunge,Extraction and separation,Anti -asthma activities
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