Diterpenoids from the stem bark of Croton zambesicus
| dc.contributor.author | Ngadjui, B.T. | |
| dc.contributor.author | Abegaz, B.M. | |
| dc.contributor.author | Keumedjio, F. | |
| dc.contributor.author | Folefoc, G.N. | |
| dc.contributor.author | Kapchec, G.W.F. | |
| dc.date.accessioned | 2008-10-27T07:36:21Z | |
| dc.date.available | 2008-10-27T07:36:21Z | |
| dc.date.issued | 2002 | |
| dc.identifier.citation | Ngadjui, B.T. et al (2002) Diterpenoids from the stem bark of Croton zambesicus, Phytochemistry, vol. 60, pp. 345–349 | en |
| dc.identifier.issn | 0031-9422 | |
| dc.identifier.uri | http://hdl.handle.net/10311/251 | |
| dc.description.abstract | Three clerodane diterpenoids, crotozambefurans A, B and C were isolated from the stem bark of Croton zambesicus together with the known clerodane crotocorylifuran and two trachylobanes: 7b-acetoxytrachyloban-18-oic acid and trachyloban-7b, 18-diol. Betulinol, lupeol, sitosterol and its 3b-glucopyranosyl derivative were also obtained. The structures of crotozambefurans A, B and C were determined, respectively, as: 15,16-epoxy-1,3,13(16),14-clerodatetraen-20,12-olide-18,19-dioic acid dimethylester, 15,16-epoxy- 1,3,13(16),14-clerodatetraen-18,19,20-trioic acid trimethylester and 15,16-epoxy-3,13(16),14-clerodatrien-19,1a:20,12-diolide-18-oic acid methylester, using spectroscopic analysis, especially, NMR spectra in conjunction with 2D experiments, COSY, HSQC, HMBC and TOCSY. | en |
| dc.language.iso | en | en |
| dc.publisher | Elsevier Science Ltd. www.elsevier.com/locate/phytochem | en |
| dc.subject | Croton zambesicus | en |
| dc.subject | Euphorbiaceae | en |
| dc.subject | Stem bark | en |
| dc.subject | Isolation; Clerodane | en |
| dc.subject | Crotozambefurans A, B and C | en |
| dc.title | Diterpenoids from the stem bark of Croton zambesicus | en |
| dc.type | Article | en |
