Total synthesis of the supposed structure of (-)-sclerophytin A and an improved route to (-)-7-deacetoxyalcyonin acetate.
Org Lett
; 2(17): 2683-6, 2000 Aug 24.
Article
em En
| MEDLINE
| ID: mdl-10990427
ABSTRACT
[reaction see text]Stereoselective acid-catalyzed rearrangement of 15-->16 is the central step in total syntheses of (-)-7-deacetoxyalcyonin acetate (1) and the compound with the alleged structure of sclerophytin A (2). Since tetracyclic diether 2 is not identical to sclerophytin A, the structure of this antineoplastic marine diterpene must be revised. The conversion of 15-->16 demonstrates for the first time that tetrahydrofurans containing (Z)-1-methylalkenyl side chains can be prepared by Prins-pinacol rearrangements.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Hidrocarbonetos Aromáticos com Pontes
/
Diterpenos
/
Furanos
/
Acetatos
Idioma:
En
Ano de publicação:
2000
Tipo de documento:
Article