REVISED C-13 NMR ASSIGNMENTS FOR NORDITERPENOID ALKALOIDS WITH 7,8-METHYLENEDIOXY AND 10-BETA-OH GROUPS

Citation
Hk. Desai et Sw. Pelletier, REVISED C-13 NMR ASSIGNMENTS FOR NORDITERPENOID ALKALOIDS WITH 7,8-METHYLENEDIOXY AND 10-BETA-OH GROUPS, Journal of natural products, 56(7), 1993, pp. 1140-1147
Citations number
13
Categorie Soggetti
Chemistry,"Plant Sciences","Pharmacology & Pharmacy
Journal title
ISSN journal
01633864
Volume
56
Issue
7
Year of publication
1993
Pages
1140 - 1147
Database
ISI
SICI code
0163-3864(1993)56:7<1140:RCNAFN>2.0.ZU;2-R
Abstract
C-13-nmr chemical shift assignments for the norditerpenoid alkaloids d eltaline 1!, deltamine 2!, dictyocarpine 3!, and 14-acetyldictyocar pine 5! have been revised on the basis of a study of their 1D, 2D, an d selective INEPT nmr spectra. These revisions suggest that the C-13-n mr chemical shift assignments for twenty-eight other norditerpenoid al kaloids possessing 7,8-methylenedioxy and 10beta-OH groups may have to be revised. Complete H-1-nmr chemical shift assignments for compounds 1-3 and 5 are also reported.