ChemotaxonomyLeucine-derived nitrile glucosides in the rosaceae and their systematic significance☆

Add time:08/11/2019    Source:sciencedirect.com

Six nitrile glucosides and one cyanogenic glucoside (epiheterodendrin) have been isolated from the leaves of members of the Rosaceae-Prunoideae and Rosaceae-Kerrieae. Two of these, 4-β-d-glucopyranosyloxy-2R,3R-epoxy-3-hydroxymethyl-butyronitrile (sutherlandin epoxide) and 4-β-d-glucopyranosyloxy-3S-methyl-butyronitrile (dihydro-osmaronin), are new compounds. The aglycones of all the nitrile glucosides are apparently derived from l-leucine. The distribution and taxonomic significance of these glucosides in the species investigated is discussed briefly.

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