... C22H25NO6Molecular Structure:Synonyms:(4S,5R)-2-(4-Methoxyphenyl)-4-phenyl-3,5-oxazolidinedicarboxylic acid 3-tert-butyl ester;3,5-Oxazolidinedicarboxylic acid,2 ... -(4-methoxyphenyl)-4-phenyl-,3-(1,1-dimethylethyl) ester, ... 9.5 percent. (4S,5R)-3-tert-butoxycarbony-2-(4-anisyl)-4-phenyl-5-oxazolidinecarboxylic acid