An expedient synthesis of (R)-(+)-umbela
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Colin L. Gibson; Sheetal Handa
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Article
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1996
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Elsevier Science
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English
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The synthesis of the naturally occurring 2(5H)-furanone (R)-(+)-umbelactone 1 in five steps and 26.2% overall yield from The 2(5H)-furanone (R)-(+)-umbelactone 1 has been isolated from the alcoholic extracts of Memycelon umbelatum Brum. 1 The crude extracts of this plant have shown antiviral, antia