(4R)-(+)-3-(tert-Butoxycarbonyl)-2,2-dimethyl-4-(methoxycarbonyl)-1,3-oxazolidine3-tert-Butyl 4-methyl (4R)-(+)-2,2-dimethyl-1,3-oxazolidine-3,4-dicarboxylateMethyl (4R)-(+)-2,2-dimethyl-1,3-oxazolidine-4-carboxylate, N-BOC protected(S)-(-)-3-(叔丁氧羰基)-2,2-二甲基-4-噁唑啉羧酸甲酯Methyl (S)-(-)-3-(tert-butoxycarbonyl)-2,2-dimethyl-4-oxazolidinecarboxylateMethyl (S)-(-)-3-Boc-2,2-dimethyl-4-oxazolidinecarboxylate(S)-(-)-3-Boc-2,2-二甲基-4-噁唑啉羧酸甲酯(S)-3-(1,1-Dimethylethyl)-4-methyl-2,2-dimethyl-3,4-oxazolidine carboxylate(S)-(-)-3-tert-Butoxycarbonyl-4-methoxycarbonyl-2,2-dimethyl-1,3-oxazolidinemethyl (s)-(-)-3-boc-2,2-dimethyl-4-oxazolidinecarboxylate