Isolation, Structure Elucidation, and Total Synthesis of Myrtuspirone A from Myrtus communis.
Org Lett
; 21(6): 1583-1587, 2019 03 15.
Article
em En
| MEDLINE
| ID: mdl-30799624
ABSTRACT
A pair of enantiomeric triketone-phloroglucinol hybrids, (+)- and (-)-myrtuspirone A (1), featuring an unprecedented 3-isopropyl-3 H-spiro[benzofuran-2,1'-cyclohexane] backbone, were isolated from the leaves of Myrtus communis. The absolute configuration of each enantiomer of 1 was determined by X-ray diffraction and chemical calculations. Furthermore, the gram-scale total syntheses of (±)-1 and (-)-1 were conducted in four steps using a Michael- N-iodosuccinimide (NIS)-mediated (3 + 2)-annulation reaction. Both (+)- and (-)-1 exhibited antibacterial activities against Gram-positive bacteria including multidrug-resistant strains.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Benzofuranos
/
Folhas de Planta
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Cicloexanos
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Myrtus
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Bactérias Gram-Positivas
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Antibacterianos
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article