A new ent-kaurene β-D-glucoside was isolated from Rabdosia rubescens, together with the known compounds oridonin, ponicidin, and pedalitin. The structure of new compound was determined, on the basis of spectral date and X-ray crystallographic analysis, to be ent-7β, 20-epoxy-kaur-16-ene-1β, 6α, 7α, 14α, 15α-pentanol 1-O-β-D-glucopyranoside.
crystal structure, diterpene, Rabdosia rubescens, ent-kaurene, diterpene glycoside
NCBI PubMed ID: 10705493Publication DOI: 10.1248/cpb.48.148Journal NLM ID: 0377775Publisher: Pharmaceutical Society Of Japan
Institutions: Department of Chemistry, Zhengzhou University, Zhengzhou, China, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan
Methods: 13C NMR, 1H NMR, TLC, ESI-MS, HPLC, extraction, derivatization, evaporation, HR-EI-MS
Found