Amino Acids 2007-01-01

Synthesis of bis-armed amino acid derivatives via the alkylation of ethyl isocyanoacetate and the Suzuki-Miyaura cross-coupling reaction.

S Kotha, V R Shah, S Halder, R Vinodkumar, K Lahiri

Index: Amino Acids 32(3) , 387-94, (2007)

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Abstract

Two synthetic routes to bis-armed-alpha-amino acid derivatives are described. The first route involves alkylation of dibromo derivatives with ethyl isocyanoacetate under phase-transfer catalysis (PTC) conditions. The second route uses a palladium-mediated Suzuki-Miyaura cross-coupling reaction between a DL-4-boronophenylalanine derivative and aromatic diiodo (or dibromo) compounds.