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6a,7-Didehydroisothebaine

On oxidation, Isothebaine (145) forms 6a,7-Didehydroisothebaine (146) as well as PO-3 129, which can be protonated to give a red substance. Both alkaloid gives Isothebain on reduction (69MI2) (Scheme 52). [Pg.114]

P. orientale (50), was reported to give 6a,7-didehydroisothebaine (15b) and alkaloid PO-3. Alkaloid PO-3 has the following resonance structures in the protonated and unprotonated forms ... [Pg.246]

See also in sourсe #XX -- [ Pg.85 , Pg.114 ]

See also in sourсe #XX -- [ Pg.85 , Pg.114 ]



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