... )carbonyl]amino]-a-hydroxy-, (aR,bS)-Superlist Name:(2R,3S)-Boc-3-PhenylisoserineFormula:C14H19 N O5Molecular Structure:Synonyms:Benzenepropanoicacid, b ... -dimethylethoxy)carbonyl]amino]-a-hydroxy-, [R-(R*,S*)]-;(2R,3S)-3-(Boc-amino)-3-phenyl-2-hydroxypropanoic acidMolecular Weight:281 ... percent vs. the combination’s 9.5 percent. (2R,3S)-3-t-butoxy-carbonylamino-2-hydroxy-3-phenylpropin acid 145514 ...