Two Novel Minor Alkaloids From EthiopianCalpurnia aureaSsp.aurea

Planta Medica
1986.0

Abstract

Two novel minor quinolizidine alkaloids 4 beta-hydroxy-13alpha- O-(2'-pyrrolylcarbonyl)-lupanine (digittine) and its amino alcohol, 4 beta, 13alpha-dihydroxylupanine, have been isolated from Ethiopian Calpurnia aurea ssp. aurea. The structures of these alkaloids were determined by chemical transformation and by means of spectroscopic techniques (UV, IR, CD, MS, (1)H-NMR and (13)C-NMR) including two dimensional NMR.

DOI： 10.1055/s-2007-969159

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