A stereodivergent access to naturally occurring aminocarbasugars from (Phenylsulfonyl)-7 -oxa-bicyclo[2.2.1 ]heptane derivatives. Total synthesis of ( + )-Validamine and its CI and C2 stereoisomers

Autores/as

  • J. PLUMET
  • O. ARBONA

Resumen

The total syntheses of the antibiotic validamine an its three diastereomers have been

acomplished and their racemic penta-N-O-acetates via stereocontrolled nucleophilic epoxidation

of polihydroxylated cyclohexenyl sulfones, obtained from (phenylsulphonyl)-7-

oxabicyclo[2,2, l ]heptanes. The diastereoselectivity of the epoxidation can be readily

controlled by careful choice of the hydroxyl protecting group. Ring opening of the

resulting epoxisulfones followed by stereocontrolled introduction of an amine precursor

led to the four C-l and C-2 diastereomers of the I-aminocarbasugars.

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Citas

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(1990) : Bull. Soco Chim. Belg., 99:395-439. b) VOGEL, P.; FATTORl, D.; GASPARINI,
F. and LE DRlAN, C. (1990): Synlett, pp. 173-1 85. For recents applications of these

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Publicado

1995-09-20

Cómo citar

1.
PLUMET J, ARBONA O. A stereodivergent access to naturally occurring aminocarbasugars from (Phenylsulfonyl)-7 -oxa-bicyclo[2.2.1 ]heptane derivatives. Total synthesis of ( + )-Validamine and its CI and C2 stereoisomers. Ars Pharm [Internet]. 20 de septiembre de 1995 [citado 4 de mayo de 2024];36(3):445-54. Disponible en: https://revistaseug.ugr.es/index.php/ars/article/view/21886

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