Studies Aimed at the Synthesis of Morphine, IV'): ... A New Approach to N-Norreticuline Derivatives from Homoveratronitrile ... Csaba Szhtay', Gdbor Dornyei, Gdbor Blask6, Marietta Bdrczai-Beke and Peter Pechy ... Department of Organic Chemistry, Technical University, Budapest XI. GellCrt tCr 4., H-1521, Hungary Central Research Institute for Chemistry, Hungarian Academy of Sciences, Budapest 11. Pusztaszeri u. 59/67. H-1525, Hungary Eingegangen am 5. ...