Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2018, Issue 42, Pages 5830-5835Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201800262
Keywords
Total synthesis; Natural products; Cycloaddition; Asymmetric synthesis; Chiral auxiliaries; Biological activity
Categories
Funding
- Bright Spark Unit, University of Malaya, Malaysia
- French Embassy in Malaysia
- Agence Nationale de la Recherche [CEBA: ANR-10-LABX-25-01]
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Based on a bioinspired asymmetric Diels-Alder cycloaddition using a chiral Evans oxazolidinone, the first total synthesis of both enantiomers of two myrcene-derived cyclohexenyl chalcones, fislatifolione and fislatifolic acid, has been carried out. This strategy was also applied to the total synthesis of nicolaiodesin C. These natural products, as well as their synthetic intermediates, were evaluated by in-vitro affinity displacement assays, based on the modulation of Bcl-xL/Bak, Mcl-1/Bid, and Bcl-2-Bim interactions. This study showed that (+)-fislatifolic acid acts as a dual Bcl-xL/Mcl-1 inhibitor with micromolar activity, and that a Weinreb amide intermediate acts as an excellent Mcl-1/Bcl-2 dual inhibitor at the submicromolar level.
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