Synonyms: 3-Oxazolidinecarboxylicacid, 4-ethynyl-2,2-dimethyl-, 1,1-dimethylethyl ester, (R)-;(4R)-3-(tert-Butoxycarbonyl)-4-ethynyl-2,2-dimethyloxazolidine;(R)-N-Boc-2,2-dimethyl-4-ethynyloxazolidine; tert-Butyl(4R)-4-ethynyl-2,2-dimethyl-1,3-oxazolidine-3-carboxylate