Autor: |
Almudena Bermejo, M. Carmen Zafra-Polo, Adrien Cavé, Eva Peris, Diego Cortes, Ernesto Estornell, Bruno Figadère |
Rok vydání: |
2002 |
Předmět: |
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Zdroj: |
Tetrahedron. 58:1335-1342 |
ISSN: |
0040-4020 |
DOI: |
10.1016/s0040-4020(01)01234-0 |
Popis: |
Methoxymethylation of altholactone ( 1 ) led to the corresponding O -methoxymethyl derivative ( 3 ) in addition to the unexpected 6,7-dihydro-7-methoxy analogue ( 4 ), and two original tetrahydrofuranic (THF) alkyl esters ( 5 , 6 ). Moreover, when we accomplished a new method for the preparation of the furano-pyrone goniofupyrone ( 7 ) through 7-hydroxylation of 1 in acid medium, a minor compound ( 8 ) with an identical skeleton to that of compounds 5 and 6 was identified. Careful examination of the published spectral data of the reported styryl-lactones with an heptolide skeleton reveals that those structures possess also a THF alkyl ester skeleton. The revision of those structures was confirmed by chemical correlation. All altholactone derivatives assayed proved to be specific inhibitors of the mitochondrial complex I. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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