Mannic acid, a new ent-kaurane dimer diterpenoid and other chemical constituents from different parts of Diospyros mannii

A new dimeric ent-kaurane diterpene, mannic acid (1), and 19 known compounds were isolated from the methanol extract of the stems, roots and leaves of Diospyros mannii Hiern (Ebenaceae). Their structures were established by NMR and MS data. This is the first report of asperglaucide from the family E...

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Published inBiochemical systematics and ecology Vol. 74; pp. 51 - 56
Main Authors Feusso, Hermann Marius Feumo, Mvot Akak, Carine, Feussi Tala, Michel, Azebaze, Anatole Guy Blaise, Vardamides, Juliette Catherine, Laatsch, Hartmut
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.10.2017
Subjects
Chemotaxonomic value
Diospyros mannii
Ebenaceae
Kaurane diterpene
Mannic acid
Kaurane diterpene
Mannic acid
Ebenaceae
Chemotaxonomic value
Diospyros mannii
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Summary:A new dimeric ent-kaurane diterpene, mannic acid (1), and 19 known compounds were isolated from the methanol extract of the stems, roots and leaves of Diospyros mannii Hiern (Ebenaceae). Their structures were established by NMR and MS data. This is the first report of asperglaucide from the family Ebenaceae, while mannic acid (1) and xylopic acid (2) are the first ent-kaurane diterpenes isolated from this family. Their chemotaxonomic value is discussed. [Display omitted] •A new dimeric ent-kaurane diterpene, mannic acid, was isolated from Diospyros mannii (Ebenaceae).•The phenylalanine derivative asperglaucide is reported here for the first time in this family.•Mannic acid and xylopic acid represent the first ent-kaurane diterpenes within this family, their chemotaxonomic value is discussed.
ISSN:0305-1978
1873-2925
DOI:10.1016/j.bse.2017.09.001