1,2-DIDEMETHYLCOLCHICINE - A NEW ALKALOID FROM GLORIOSA-SUPERBA

Citation
Pk. Chaudhuri et Rs. Thakur, 1,2-DIDEMETHYLCOLCHICINE - A NEW ALKALOID FROM GLORIOSA-SUPERBA, Journal of natural products, 56(7), 1993, pp. 1174-1176
Citations number
13
Categorie Soggetti
Chemistry,"Plant Sciences","Pharmacology & Pharmacy
Journal title
ISSN journal
01633864
Volume
56
Issue
7
Year of publication
1993
Pages
1174 - 1176
Database
ISI
SICI code
0163-3864(1993)56:7<1174:1-ANAF>2.0.ZU;2-8
Abstract
From the seeds of Gloriosa superba, the new alkaloid 1,2-didemethylcol chicine 2!, was isolated, accompanied by known naturally occurring al kaloids colchicine, 2,3-didemethylcolchicine 1!, 3-demethylcolchicine , N-formyl-N-deacetylcolchicine, and colchicoside. The structure of 1, 2-didemethylcolchicine was secured by H-1 nmr with the help of decoupl ing and nOe difference spectra, ms, and alpha!D.