A new iridoid glucoside, 5β,6β-dihydroxyboschnaloside (1), was isolated from the aerial parts of Euphrasia pectinata. Five known iridoid glucosides, 6β-hydroxyboschnaloside (2), aucubin, euphroside, plantarenaloside, and geniposidic acid, and two known phenylethanoid glycosides, verbascoside (= acteoside) and leucosceptoside A, were also obtained and characterized. The structure of compound 1 was established by spectroscopic evidence.
spectroscopy, iridoid glycoside, aerial parts, Euphrasia pectinata
NCBI PubMed ID: 11076577Publication DOI: 10.1021/np000185nJournal NLM ID: 7906882Publisher: American Society of Pharmacognosy
Correspondence: tersoz@domi.com.tr
Institutions: Department of Pharmacognosy, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey, Department of Medicinal Chemistry, College of Pharmacy, University of Utah, Salt Lake City, USA
Methods: 13C NMR, 1H NMR, IR, FAB-MS, TLC, ESI-MS, extraction, optical rotation measurement, CC, evaporation, MPLC, HR-FAB-MS, VLC
Found