Crystal structures of hibiscus acid and hibiscus acid dimethyl ester isolated from Hibiscus sabdariffa (Malvaceae)

The biologically active title compounds have been isolated from Hibiscus sabdariffa plants, hibiscus acid as a dimethyl sulfoxide monosolvate [systematic name: (2S,3R)-3-hy­droxy-5-oxo-2,3,4,5-tetra­hydro­furan-2,3-di­carb­oxy­lic acid dimethyl sulfoxide monosolvate], C(6)H(6)O(7)·C(2)H(6)OS, (I), a...

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Detalles Bibliográficos
Autores principales: Zheoat, Ahmed M., Gray, Alexander I., Igoli, John O., Kennedy, Alan R., Ferro, Valerie A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2017
Materias:
Research Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5588582/
https://www.ncbi.nlm.nih.gov/pubmed/28932476
http://dx.doi.org/10.1107/S2056989017011902
Descripción
Sumario:The biologically active title compounds have been isolated from Hibiscus sabdariffa plants, hibiscus acid as a dimethyl sulfoxide monosolvate [systematic name: (2S,3R)-3-hy­droxy-5-oxo-2,3,4,5-tetra­hydro­furan-2,3-di­carb­oxy­lic acid dimethyl sulfoxide monosolvate], C(6)H(6)O(7)·C(2)H(6)OS, (I), and hibiscus acid dimethyl ester [systematic name: dimethyl (2S,3R)-3-hy­droxy-5-oxo-2,3,4,5-tetra­hydro­furan-2,3-di­carboxyl­ate], C(8)H(10)O(7), (II). Compound (I) forms a layered structure with alternating layers of lactone and solvent mol­ecules, that include a two-dimensional hydrogen-bonding construct. Compound (II) has two crystallographically independent and conformationally similar mol­ecules per asymmetric unit and forms a one-dimensional hydrogen-bonding construct. The known absolute configuration for both compounds has been confirmed.

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