... -, 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-butoxycarbonyl)-2,2-dimethyl-4 ...