Rossicasins A, B and rosicaside F, three new phenylpropanoid glycosides from Boschniakia rossica

Ming Hwang Shyr, Tung Hu Tsai, Lie Chwen Lin*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

16 Scopus citations


Three phenylpropanoid glycosides have been isolated, together with the known phenylpropanoid glycosides rossicaside A (4), B (5), E (6), and trans-p-coumaryl alcohol 1-O-β-D-glucopyranosyl(1→4)-α-L- rhamnopyranosyl(1→3)-β-D-glucopyranoside (7), and an acylated oligosaccharide β-D-glucopyranosyl(1→4)-α-L-rhamnopyranosyl- (1→3)-(4-O-trans-caffeoyl)-D-glucopyranose) (8), from the aqueous extract of Boschniakia rossica (CHAM. et SCHLECH.) FEDTSCH. et FLEROV. Spectroscopic evidence led to the assignments of their structures as trans-p-coumaryl- (6′-O-β-D-xylopyranosyl)-O-β-D-glucopyranoside (1), trans-p-coumaryl-(6′-O-α-L-arabinopyranosyl)-O-β-D- glucopyranoside (2) and 2-(3,4-dihydroxyphenyl)-R,S-2-ethoxy-ethyl-O-β-D- glucopyranosyl(1→4)-α-L-rhamnopyranosyl(1→3)(4-O-trans-caffeoyl) -β-D-glucopyranoside (3), designated as rossicasin A, rossicasin B, and rossicaside F, respectively. Compound 7 was identified from the degradation reaction and this is the first isolation from a natural source.

Original languageEnglish
Pages (from-to)252-254
Number of pages3
JournalChemical and Pharmaceutical Bulletin
Issue number2
StatePublished - 02 2006
Externally publishedYes


  • Boschniakia rossica
  • Orobanchaceae
  • Phenylpropanoid glycoside
  • Rossicaside F
  • Rossicasin A
  • Rossicasin B


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