Nigrumin-5-p-coumarate and nigrumin-5-ferulate, two unusual nitrile-containing metabolites from black currant (Ribes nigrum) seed.
Two novel nitrile-containing compounds, nigrumin-5-p-coumarate and nigrumin-5-ferulate, together with six known flavonoids, were isolated from the seed of black currant (Ribes nigrum). The chemical structures of nigrumin-5-p-coumarate and 5-ferulate were elucidated using NMR spectroscopy as 2-trans-p-coumaroyloxymethyl-4-beta-D-glucopyranosyloxy-2(E)-butenenitrile and 2-trans-feruloyloxymethyl-4-beta-D-glucopyranosyloxy-2(E)-butenenitrile, respectively.
Lu
Yinrong
Y
Industrial Research, PO Box 31310, Lower Hutt, New Zealand. y.lu@irl.cri.nz
Foo
L Yeap
LY
Wong
Herbert
H
D003373:Coumaric Acids / Q000737:chemistry* / Q000302:isolation & purification; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009570:Nitriles / Q000737:chemistry* / Q000302:isolation & purification; D010945:Plants, Edible / Q000737:chemistry; D019685:Rosales / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*
D003373:Coumaric Acids; D005419:Flavonoids; D009570:Nitriles; C454586:nigrumin-5-ferulate; C454587:nigrumin-5-p-coumarate