... 3,5-Oxazolidinedicarboxylicacid, 2,2-dimethyl-4-phenyl-, 3-(1,1-dimethylethyl) ester, (4S-trans)-;(4S,5R)-5-Carboxy-2,2- ... dimethyl-4-phenyl-3-(tert-butoxycarbonyl)oxazolidine;(4S,5R ... tert-butoxycarbonyl)-2,2-dimethyl-4-phenyl-5-oxazolidinecarboxylic acid;(4S-trans)-2,2-Dimethyl-4-phenyl-3,5-oxazolidinedicarboxylic acid 3-(1,1-dimethylethyl ...