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Colchicum cornigerum

Allocolchicine (12) is found in small amounts in Colchicum cornigerum (14) and is identical with material prepared from colchicine and isocolchicine with sodium methoxide in refluxing methanol (15-16). It is also identical with so-called substance O obtained by Santav from the flowers... [Pg.130]

Three alkaloids, namely alkaloids CC-10 (12) and CC-20 (15) and collutine (13), were isolated from Colchicum cornigerum (5) and Colchicum luteum (6), respectively. Recently, a fourth alkaloid, colchiritchine... [Pg.189]

The simple phenethylisoquinoline alkaloid autumnaline (68), isolated from Colchicum cornigerum (2), has the basic skeleton of several phenethylisoquinoline alkaloids described later. The structure of 68 was arrived at through comparison with a synthetic sample (2a, 2b). [Pg.277]

This alkaloid was shown to be structurally identical with alkaloid CC-2, from Colchicum cornigerum (Schweinf.) Tackh. et Drar. (Liliaceae) (118,119) but enantiomeric. Exhaustive spectroscopic analysis followed by chemical transformation to 0-methylandrocymbine (120) proved its structure to be LXXVIa (121). Its absolute molecular structure has been elucidated by an X-ray analysis of its methiodide (122). Mass and NMR-... [Pg.484]

Colchicum cornigerum on the basis of an X-ray analysis of its methiodide. A review on the opium poppy Papaver somniferum describing its diverse uses and effects has appeared.Apparently the positive identification of morphine, codeine, thebaine, papaverine, and narcotine in unknown resins and powders may be taken as evidence that they are derived from P. somniferum. The yield and alkaloid content of P. somniferum capsules upon fertilization has been determined. ... [Pg.142]

Simple Phenethylisoquinolines.—The alkaloid (—)-autumnaline (210) from Colchicum cornigerum (Liliaceae, subfamily Wurmbaeoidae) possesses the absolute configuration shown, and its synthesis has been carried out. ... [Pg.163]

Colchicine and Related Alkaloids.— The structure of speciosine (226) was deduced by spectroscopic methods and confirmed by synthesis from demecolcine and 2-bromomethylphenyl acetate. N-Formyldemecolcine is a new alkaloid found in Colchicum cornigerum ... [Pg.166]

Colchicum cornigerum Tackh et Drar UAR Corms, seeds... [Pg.465]

C2 H32lNOs, Colchicum cornigerum alkaloid (methiodide derivative), 39B, 425... [Pg.285]

See other pages where Colchicum cornigerum is mentioned: [Pg.190]    [Pg.722]    [Pg.140]    [Pg.407]    [Pg.414]    [Pg.436]    [Pg.375]    [Pg.190]    [Pg.722]    [Pg.140]    [Pg.407]    [Pg.414]    [Pg.436]    [Pg.375]    [Pg.267]   
See also in sourсe #XX -- [ Pg.484 ]

See also in sourсe #XX -- [ Pg.409 ]



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