Dicorynamine and harmalan-N-oxide, two new ?-carboline alkaloids from #Dicorynia guianensis# Amsh heartwood
2015
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.
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)
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