(4R,5S)-2,2-Dimethyl-4-phenyl-3,5-oxazolidinedicarboxylic Acid 3-(1,1-dimethylethyl) Ester is a reagent for preparing1,8-naphthyridine-3-carboxamide derivatives with anticancer and anti-inflammatory activities. It can also be used to synthesize taxol derivatives for medical applications.