Enantioselective Total Synthesis of (+)-Eupenoxide and (+)-Phomoxide: Revision of Structures and Assignment of Absolute Configuration
作者:Goverdhan Mehta、Subhrangsu Roy
DOI:10.1021/ol0492288
日期:2004.7.1
[reaction: see text] Stereo- and enantioselective total syntheses of the novel, polyketide natural products ent-eupenoxide and ent-phomoxide have been accomplished from the readily available Diels-Alder adduct of cyclopentadiene and p-benzoquinone. These synthetic studies necessitate the revision of the assigned stereostructures of the natural products and reveal their absolute configuration.
Enantioselective total synthesis of (−)-epoxyquinols A and B. Novel, convenient access to chiral epoxyquinone building blocks through enzymatic desymmetrization
作者:Goverdhan Mehta、Kabirul Islam
DOI:10.1016/j.tetlet.2004.03.057
日期:2004.4
Following our recent total synthesis of the biologically potent natural products epoxyquinols A and B in racemic form, we have now accomplished the total synthesis of the (−)-epoxyquinols A and B, anti-podes of the angiogenesis inhibiting natural products, through a protocol that involves enzymatic desymmetrization of a versatile epoxyquinone derivative, readily available from the Diels–Alder adduct
Total Synthesis of the Novel NF-κB Inhibitor (−)-Cycloepoxydon
作者:Goverdhan Mehta、Kabirul Islam
DOI:10.1021/ol036521j
日期:2004.3.1
An enantioselective totalsynthesis of the novel, biologically active epoxyquinone natural product (-)-cycloepoxydon has been accomplished from the readily available Diels-Alder adduct of cyclopentadiene and p-benzoquinone. A new cycloepoxydon related heptacyclic dimer has been prepared and characterized. [reaction: see text]