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Studies aimed at the synthesis of morphine V an economic approach to (±)-reticuline from 3,4-dihydropapaverine
Authors:Gábor Dörnyei  Marietta Bárczai-Beke  Gábor Blaskó  Péter Péchy  Csaba Szántay
Institution:Institute for Organic Chemistry, Technical University Budapest H-1521, and Central Research Institute for Chemistry of the Hungarian Academy of Sciences, Budapest Hungary
Abstract:Regioselective demethylation of 3,4-dihydropapaveraldine (2a) at 7 and 3' positions affords a properly substituted diphenolic key intermidiate (2d) for the synthesis of reticuline and N-norreticuline.
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