201230-82-2
carbon monoxide
+
112766-18-4
(S)-4-[[(trifluoromethyl)sulfonyl]oxy]-alpha-[[(1,1-dimethylethoxy)carbonyl]amino]benzenepropanoic acid methyl ester
→
~90%
123993-33-9
N-Boc-4-carboxyphenylalanine methyl ester
205126-71-2
(2S)-3-(4-carbamoylphenyl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid