Triterpenoids from Drypetes chevalieri Beille (euphorbiaceae)

• Published in: Natural product research Vol. 20; no. 6; pp. 586 - 592
• Main Authors: Wansi, J. D., Wandji, J., Kamdem, W. A. F., Ndom, J. C., Ngeufa, H. E., Chiozem, D. D., Chi Shirri, J., Choudhary, M. I., Tsabang, N., Tillequin, F., Fomum, Z. T.
• Format: Journal Article
• Language: English
• Published: England Taylor & Francis Group 20.05.2006
• Subjects: Caffeic Acids - chemistry; Caffeic Acids - isolation & purification; Drypechevalin A and B; Drypetes chevalieri Beille; Euphorbiaceae; Euphorbiaceae - chemistry; Hydrolysis; Microbial Sensitivity Tests; Molecular Structure; Nuclear Magnetic Resonance, Biomolecular; Plant Stems - chemistry; Sesquiterpenes - chemistry; Sesquiterpenes - isolation & purification; Sesquiterpenes - pharmacology; Spectrometry, Mass, Electrospray Ionization; Spectrophotometry, Infrared; Stem
• ISSN: 1478-6419; 1478-6427
• DOI: 10.1080/14786410500185451

The CH 2 Cl 2 /CH 3 OH (1/1) extract of the dried stem of Drypetes chevalieri Beille afforded two new triterpenoïds named drypechevalin A (11-oxo-β-amyrin-3β-ylcaffeate) and drypechevalin B (3,7-dioxo-D:A-friedooleanan-24-al) along with five known compounds: lupeol, lupeone, erythrodiol, putranjivadione, friedelin. Their structures were established on the basis of spectroscopic analysis and chemical evidence. ‡‡Part 5 in the series Drypetes studies.