55820-85-4Relevant academic research and scientific papers
Synthesis of Cadaverine and its Incorporation into five Quinolizidine Alkaloids
Robins, David J.,Sheldrake, Gary N.
, p. 2101 - 2120 (2007/10/02)
Cadaverine dihydrochloride (13) was synthesised by the sequential introduction of two equivalents of sodium cyanide to a C3 precursor, and it was fed to Lupinus luteus and L. polyphyllus plants.Complete labelling patterns were obtained in five quinolizidine alkaloids by 13C n.m.r. spectroscopy.The 13C-13C doublets observed in the spectra of (-)-lupinine (3), (-)-sparteine (4), (+)-lupanine (5), (+)-13α-hydroxylupanine (6), and (+)-angustifoline (7) derived biosynthetically from the doubly labelled precursor (13) confirm the intact, specific incorporation of two cadaverine units into the tetracyclic quinolizidine alkaloid skeletons.The cadaverine (13) units are incorporated to about the same extent into each part of the quinolizidine alkaloids (3)-(7).Two of the 13C chemical shifts for lupanine (5) have been reassigned.The labelling pattern of the tricyclic alkaloid angustifoline (7) indicates that the allyl group originates by degradation of one ring of a tetracyclic precursor.
