n-butyllithium; ammonium chloride

benzyl 2-(R)-[(tert-butoxycarbonyl)amino]-3-iodopropanoate; zinc; bis-triphenylphosphine-palladium(II) chloride 1.) THF/N,N-dimethylacetamide, 65 deg C, 1 h, 2.) THF/N,N-dimethylacetamide, 65 deg C, 5 h; Yield given. Multistep reaction. Yields of byproduct given;

zinc; bis-triphenylphosphine-palladium(II) chloride 1.) THF/N,N-dimethylacetamide, 65 deg C, 1 h, 2.) THF/N,N-dimethylacetamide, 65 deg C, 5 h; Yield given. Multistep reaction. Yields of byproduct given;