TY - JOUR
T1 - A new coumarin from Perezia hebeclada
AU - Hernández-Carlos, Beatriz
AU - Burgueño-Tapia, Eleuterio
AU - Joseph-Nathan, Pedro
PY - 2003/11
Y1 - 2003/11
N2 - Methanol extracts from Perezia hebeclada roots yielded the new 8-β-D-glucopyranosyloxy-4-methoxy-5-methylcoumarin (1) together with the known 4-β-D-glucopyranosyloxy-5-methylcoumarin (2). Their structures were determined and verified, respectively, by MS and NMR studies, including 1D and 2D experiments. Two 13C NMR signals of the sugar residue of 2 were reassigned.
AB - Methanol extracts from Perezia hebeclada roots yielded the new 8-β-D-glucopyranosyloxy-4-methoxy-5-methylcoumarin (1) together with the known 4-β-D-glucopyranosyloxy-5-methylcoumarin (2). Their structures were determined and verified, respectively, by MS and NMR studies, including 1D and 2D experiments. Two 13C NMR signals of the sugar residue of 2 were reassigned.
KW - 2D NMR
KW - 8-β-D-glucopyranosyloxy-4-methoxy-5-methylcoumarin
KW - C NMR
KW - H NMR
KW - NMR
KW - Perezia hebeclada
UR - http://www.scopus.com/inward/record.url?scp=0242690488&partnerID=8YFLogxK
U2 - 10.1002/mrc.1284
DO - 10.1002/mrc.1284
M3 - Artículo
SN - 0749-1581
VL - 41
SP - 962
EP - 964
JO - Magnetic Resonance in Chemistry
JF - Magnetic Resonance in Chemistry
IS - 11
ER -