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The distributions of the alkaloids colchicine, 2-demethylcolchicine, 3-demethylcolchicine, demecolcine, 2-demethyldemecolcine, and 3-demethyldemecolcine in the corms, stems, leaves, flowers, and seeds of COLCHICUM CILICICUM were analysed by HPLC. In addition, the alkaloids cornigerine, N-formyl-
As a part of a project designed to investigate Colchicum species in Jordan, the chemical constituents of Colchicum crocifolium Boiss. (Colchicaceae) were investigated using LC-MS and LC-UV/Vis PDA. A decision tree for working with colchicinods has been developed by incorporating data from LC-UV/PDA
As a part of our continuing investigation of Jordanian Colchicum species, the biologically active components of Colchicum hierosolymitanum Feinbr and Colchicum tunicatum Feinbr (Colchicaceae) were pursued. The brine shrimp lethality test (BSLT) was used to direct the fractionation and isolation of
Isolation, characterization, and biological evaluation of active components of Colchicum stevenii Kunth (Colchicaceae) are described. Colchicum stevenii is an unexplored Jordanian specie with toxic reputation. Directed by brine shrimp lethality test (BST), methanolic extraction, liquid-liquid
As part of our continuing investigation of Jordanian Colchicum species, the biologically active components of Colchicum brachyphyllum were pursued. Using bioactivity-directed fractionation, nine colchicinoids were isolated and characterized. One of these has a novel ring system, to which we have