[Synthesis and analytical characterization of the dansyl derivatives of 6,14-ethenomorphinans]

The synthesis of the dansyl derivatives of the pharmacologically important 6,14-ethenomorphinans has not been reported. The authors realized the preparation of the dansyl derivatives (2a-i) of some 20-alkyl(aralkyl)-orvinols (1a-i). The authors unequivocally proved the structure of the parent compounds, and their dansyl derivatives. The authors also investigated certain analitical characteristics (thin-layer chromatography, UV-spectral data and reversed-phase HPLC purity tests) for the detection if necessary of these compound in biological fluid. Namely, due to the fluorescent properties of the dansyl derivatives, the sensitivity and selectivity of the analytical determinations of the parent compounds are significantly enhanced.