New Galactopinitol from Seeds of Trigonella caerulea

A study of the chemical composition of polar compounds from seeds ofTrigonella caerulea (L.) Ser. (Fabaceae) revealed the presence of monosaccharides (2 and3); oligosaccharides (4 –7); pinitol (8) and galactopinitols (1 and9 –11), including the new compound1; glycosides of diosgenin (12 –15); and alkaloids (16 –22). Mass spectrometry, chemical transformations, and NMR spectroscopy established that1 wasO-(α-Dgalactopyranosyl)-(1 →6)-O-(α-D-galactopyranosyl)-(1 →6)-O-(α-D-galactopyranosyl)-(1 →6)-O-(α-Dgalactopyranosyl)-(1 →2)-4-O-methyl-chiro-inositol (tetragalactopinitol A).

Source: Chemistry of Natural Compounds - November 8, 2023 Category: Chemistry Source Type: research