Cyanoglucosides from Osmaronia cerasiformis (rosaceae)
1994; Elsevier BV; Volume: 37; Issue: 4 Linguagem: Inglês
10.1016/s0031-9422(00)89525-4
ISSN1873-3700
AutoresMatthias Lechtenberg, Adolf Nahrstedt, Victor Wray, Frank R. Fronczek,
Tópico(s)Phytochemical Studies and Bioactivities
ResumoThree nitrile glucosides have been isolated from a methanolic extract of the leaves of Osmaronia cerasiformis (Torr. & Gray) Greene (Rosaceae, Prunoideae). One is the known sutherlandin (Z-4-beta-D-glucopyranosyloxy-3-hydroxymethylbut-2-ene nitrile); the second is Z-4-beta-glucopyranosyloxy-3-methylbut-2-ene nitrile, which has recently been characterized but whose stereochemistry was not previously determined; the Z-isomer identified here was named osmaronin. The third is the new 4-beta-D-glucopyranosyloxy-2R,3R-epoxy-3-methylbutyronitrile (osmaronin epoxide). The nitrile glucosides occur in the leaves and flowers of the title plant; their aglycone is apparently derived from the aliphatic amino acid L-leucine.
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