A new iridoid glycoside, scrovalentinoside (1), was isolated from the MeOH extract of the aerial parts of Scrophularia auriculata L. ssp. pseudoauriculata. The structure of the new compound 1 was elucidated as 6-O-(2", 3"-di-O-acetyl-4"-O-p-methoxy-cinnamoyl)-alpha-L-rhamnopyranosyl catalpol by spectroscopic methods. The known iridoid glycoside, scropolioside A; two saponins, verbascosaponin A and verbascosaponin; and the phenylethanoid glycoside, verbascoside, were also isolated.
leaves, Premna japonica, scorodonia, ilwensis
NCBI PubMed ID: 9748391Publication DOI: 10.1021/np980067oJournal NLM ID: 7906882Publisher: American Society of Pharmacognosy
Correspondence: Rio JL
Institutions: Departament de Farmacologia, Facultat de Farmàcia, Universitat de València, Valencia, Spain, Department of Pharmaceutical Sciences, University of Strathclyde, Glasgow, Scotland, UK
Methods: 13C NMR, 1H NMR, FAB-MS, extraction, CC, HMBC, HMQC, COSY, NOESY
Found