Squarroside C (1), a new cycloartane 3,21-bisdesmoside, was isolated from the above-ground parts of Thalictrum squarrosum. The structure of 1 was established as 3-O-[O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranosyl]-21-O-β-D-glucopyranosyl-21(S),22(S),23(R),3β,21α,22β,30-tetrahydroxy-21,23-epoxycycloart-24-ene by 2D NMR spectroscopy and FAB-MS.
squarroside C, cycloartene bisdesmoside, Thalictrum squarrosum
NCBI PubMed ID: 10579883Publication DOI: 10.1021/np990283cJournal NLM ID: 7906882Publisher: American Society of Pharmacognosy
Correspondence: Owen NL
Institutions: Irkutsk Institute of Chemistry, Siberian Branch of the RAS, 1 ul.Favorskogo, 664033 Irkutsk, Russia, Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, USA
Methods: 13C NMR, 1H NMR, IR, FAB-MS, TLC, UV, optical rotation measurement, ROESY, HMBC, COSY, HR-FAB-MS, HETCOR
Found