Phytochemistry p. 107 - 115 (1997)
Update date:2022-08-05
Topics:
Nasreen, Amber
Gundlach, Heidrun
Zenk, Meinhart H.
The physiological parameters for application experiments using immature seeds of Colchicum autumnale were optimized, so that incorporation rates in the range of 10% and higher were consistently obtained with intermediate precursors. Application of tritium and 13C-labelled phenethylisoquinolines showed that N-methylation occurs prior to the substitution of ring C and that the free hydroxy group in position 13 of autumnaline is necessary for the phenolic coupling reaction. Autumnaline gives rise to a vast array of metabolites in seeds of this plant.
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