New benzyl alcohol glycosides from Pyrus bourgaeana.
Two new aromatic glycosides, benzyl beta-D-glucopyranosyl-(1-->2)-[beta-D-apiofuranosyl-(1-->6)]-beta- D- glucopyranoside and p-[beta-D-apiofuranosyl-(1-->6)]-beta-D- glucopyranosyloxy-benzylic alcohol, have been isolated from the aerial parts of Pyrus bourgaeana (Rosaceae). The structures were elucidated by spectral analyses (including 2D-NMR spectral measurements) and chemical methods. Arbutin and four other aromatic glycosides have also been isolated and identified.
Bilia
A R
AR
Dipartimento di Chimica Bioorganica, Università di Pisa, Italy.
Escudero Rubio
M M
MM
Ladero Alvarez
M
M
Morelli
J
J
Muñoz Gonzalez
J
J
D002240:Carbohydrate Sequence; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D010946:Plants, Medicinal / Q000737:chemistry*
D006027:Glycosides