Benzenepropanoic acid, α-[[(1,1-dimethylethoxy)carbonyl]oxy]-β-[[(R)-(1,1-dimethylethyl)sulfinyl]amino]-, phenylmethyl ester, (αR,βS)-

(R)-N-benzylidene-2-methylpropane-2-sulfinamide

(2R,3S)-N-Boc-3-phenylisoserine benzyl ester