... -(1,1-dimethylethyl) ester, (4S,5R)-;3,5-Oxazolidinedicarboxylicacid, 2,2-dimethyl-4-phenyl-, 3-(1,1-dimethylethyl) ester, (4S-trans ... 4S,5R)-3-(tert-Butoxycarbonyl)-2,2-dimethyl-4-phenyl-5-oxazolidinecarboxylicacid;(4S,5R)-5-Carboxy-2,2-dimethyl-4-phenyl-3-(tert ... -butoxycarbonyl)oxazolidine;(4S,5R)-N-(tert-Butoxycarbonyl)-2,2-dimethyl-4-phenyl-5-oxazolidinecarboxylicacid;(4S,5R)-N-(tert- ...