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Isolation of (1S,2S,4S)-β-elemene. 


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The isolation of (1S,2S,4S)-β-elemene has been achieved through various methods. One approach involved the selective separation of β-elemene from Curcumae Rhizoma volatile oil using countercurrent chromatography with silver nitrate as a selective reagent, resulting in a highly purified product with over 99% purity . Additionally, a novel stereoisomer of β-elemene, (1S,2S,4S)-β-elemene, was successfully separated and characterized, showing enhanced antitumor activity compared to the original compound . Furthermore, β-elemene derivatives have been accessed through SeO2-mediated oxidation reactions, leading to the isolation of several new compounds with potential biological activities . These methods contribute to the availability of (1S,2S,4S)-β-elemene for further research and development as a promising antitumor drug .

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The paper focuses on the chemopreventive role of β-elemene in cholangiocarcinoma, not on the isolation of (1S,2S,4S)-β-elemene.
The paper isolates β-elemene from Curcumae Rhizoma using countercurrent chromatography with silver nitrate, achieving 99% purity from the volatile oil.
The paper does not specifically mention the isolation of (1S,2S,4S)-β-elemene. It focuses on synthesizing β-elemene derivatives through SeO2-mediated oxidation.
Open accessJournal ArticleDOI
Wei Chen, Zhun Feng, Qiang Liu 
08 Mar 2022-RSC Advances
2 Citations
(1S,2S,4S)-β-elemene was isolated from Curcuma wenyujin essential oil by Shi and colleagues. Its total synthesis was achieved using (R)-carvone as a chiral pool starting material.
The research paper successfully isolates (1S, 2S, 4S)-beta-elemene, a novel stereoisomer with enhanced antitumor activity and reduced side effects compared to beta-elemene, providing a new direction for antitumor drug research.

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