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Dicorynamine and harmalan-N-oxide, two new ?-carboline alkaloids from Dicorynia guianensis Amsh heartwood

Say Anouhe J.B., Amissa Adima A., bobelé Niamké F., Stien D., Kassi Amian B., Blandinières P.A., Virieux D., Kati-Coulibaly S., Amusant N.. 2015. Phytochemistry Letters, 12 : p. 158-163.

The chemical investigations of Dicorynia guianensis heartwood led to the isolation of four new indole alkaloids for the first time in this plant. Compound (1) identified as spiroindolone 2?,3?,4?,9?-tetrahydrospiro [indoline-3,1?pyrido[3,4-b]-indol]-2-one, and compound (3) described as nitrone 1-methyl-4,9-dihydro-3H-pyrido [3,4-b] indole 2-oxide and were isolated for the first time as natural products. ABTS antioxidant activity guided their isolation. (Résumé d'auteur)

Mots-clés : forêt tropicale humide; produit forestier non ligneux; arbre forestier; antioxydant; alcaloïde; composition chimique; bois de coeur; extrait de bois; suriname; guyane française; guyana; brésil; biogenèse; dicorynia guianensis

Thématique : Physiologie et biochimie végétales; Technologie des produits forestiers; Foresterie - Considérations générales

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