Strychnos decussata

The root and stem bark of Strychnos decussata (Pappe) Gilg. contain akagerine, 17-O-methylakagerine, and three new alkaloids, i.e. 10-hydroxy-21-O-methylkribine (79a) and its 21-epimer (79b) and 10-hydroxy-O-methyl-akagerine (80) 56 these alkaloids may be responsible for the muscle-relaxant properties of extracts of the bark of this plant. 

Monoterpenoid Alkaloids.—Corynantheine-Heteroyohimbine- Yohimbine Group, and Related Oxindoles. The leaves of Strychnos decussata (Pappe) Gil. contain a new glycosidic alkaloid for which the gross structure (78) has been proposed 52 so far, nothing is known about its stereochemistry. Nevertheless it seems distinctly possible that this alkaloid is a close biosynthetic relative of vallesiachotamine. 

Aspidosperma peroba) Pleiocarpa tubicina (= Pleiocarpa pycnantha var. tubicina) Strychnos amazonica Strychnos decussata Strychnos ignatii Strychnos toxifera Strychnos usambarensis... 

Rauwolfia nitida. The stem bark of Strychnos decussata and S. 

Polar compounds appear to be the active constituents of Nauclea latifolia [58]. S. decussata contains the only glucoindole alkaloid isolated from Strychnos of Madagascar [12], together with trinitrogenated alkaloids. It is possible that similar glucoindole alkaloids may be present in other Strychnos species of Madagascar and may be responsible for their reported antimalarial activity. These hydrophilic compounds... 

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