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A convenient, large-scale synthesis of 4′-carboxamido N-Boc-2′,6′-dimethyl-l-phenylalanines
Authors:Chaozhong Cai  Henry J Breslin  Wei He
Institution:Drug Discovery, Johnson & Johnson Pharmaceutical Research & Development, L.L.C., Welsh & McKean Roads, P.O. Box 776, Spring House, PA 19477, USA
Abstract:A large-scale synthesis of a series of 4′-carboxamido N-Boc-2′,6′-dimethyl-l-phenylalanines is described. This method features mild reaction conditions and high chemical yields from commercially available N-Boc-2′,6′-dimethyl-l-tyrosine methyl ester.
Keywords:N-Boc-2&prime    6&prime  l-tyrosine" target="_blank">-dimethyl-l-tyrosine  4&prime  -Carboxamido N-Boc-2&prime    6&prime  l-phenylalanines" target="_blank">-dimethyl-l-phenylalanines  Palladium-catalyzed carbonylation
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