Tessaria

The seeds of Aframomum hanburyi K. Schum. (Zingiberaceae) are used as an antidote and ingredient in certain medicinal preparations in Cameroon [93]. From an acetone extract of the seeds of this plant, two sweet dihydroflavonols, 3-acetoxy-5,7-dihydroxy-4 -methoxyflavanone (68) and 2/ ,3/ -(+)-3-acetoxy-5,7,4 -trihydroxyflavanone (69), were isolated [93]. 3-Acetoxy-5,7-dihydroxy-4 -methoxyflavanone (68) was previously isolated from a different species, Aframomum pruinosum Gagnepain [112]. However, the sweetness intensities of these compounds were not indicated [93,112]. The previously known 2R,2>R)-dihydroquercetin 3-0-acetate (71) which was rated as 80 times sweeter than sucrose, was isolated from Tessaria dodoneifolia (Hook. Am.)... 

Dihydroquercetin 3-O-acetate 4 -methyl ethei (70) Tessaria dodoneifolia (Hook. Am.) Cabrera (Compositae) 400 20... 

Tessaria integrifolia (Compositae) South America Eupatorium tinifolium (Compositae) South America... 

Bohlmann, F., C. Zdero, and M. Silva Two Further Eremophylane Derivatives from Tessaria absynthioides. Phytochem. 16, 1302 (1977). 

Jakupovic, j., N. Misra, T.V. Chau Thi, F. Bohlmann, and V. Castro Cuauthem-one Derivatives from Tessaria integrifolia and Pluchea symphytifolia. Phytochemistry 24, 3053 (1985). 

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