Two secoiridoid glycosides, loniceracetalides A and B, were isolated in very small amounts, together with 10 known iridoid glycosides, from the flower buds of Lonicera japonica. The structures of loniceracetalides A and B were determined by spectroscopic analysis.
Caprifoliaceae, flower buds, secoiridoid glycoside, Lonicera japonica, loniceracetalide A, loniceracetalide B
NCBI PubMed ID: 11140518Publication DOI: 10.1016/s0031-9422(00)00279-xJournal NLM ID: 0151434Publisher: Elsevier
Institutions: Department of 2nd Analytical Chemistry, Tohoku Pharmaceutical University, Sendai, Japan
Methods: 13C NMR, 1H NMR, FAB-MS, HPLC, UV, extraction, optical rotation measurement, CC, evaporation