Sanctis A–C Three Racemic Procyanidin Analogues from The Lichen Parmotrema sancti-angelii - Université de Rennes Access content directly
Journal Articles European Journal of Organic Chemistry Year : 2018

Sanctis A–C Three Racemic Procyanidin Analogues from The Lichen Parmotrema sancti-angelii

Abstract

The phytochemical investigation of the lichen Parmotrema sancti-angelii afforded three racemic compounds, sanctis A–C, which feature an original dibenzo-2,8-dioxabicyclo[3.3.1]nonane scaffold. These compounds were structurally characterized by extensive NMR spectroscopy analyses, comparison between experimental and theoretical NMR spectroscopic data, and X-ray crystallography. These metabolites are similar to procyanidin A and display a methyl group instead of a pendant aromatic ring at C-9, a so far unprecedented structural feature. A biosynthetic route to sanctis A–C is proposed.
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Dates and versions

hal-01809151 , version 1 (06-07-2018)

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T.-H. Duong, X.-P. Ha, W. Chavasiri, M.A. Beniddir, G. Genta-Jouve, et al.. Sanctis A–C Three Racemic Procyanidin Analogues from The Lichen Parmotrema sancti-angelii. European Journal of Organic Chemistry, 2018, 2018 (19), pp.2247-2253. ⟨10.1002/ejoc.201800202⟩. ⟨hal-01809151⟩
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