2-tert-Butoxycarbonylamino-2-[3-(2,2-dimethyl-propionyloxymethoxy)-5-furan-2-yl-isoxazol-4-ylmethyl]-malonic acid diethyl ester

dimethyl (2R,3R)-2-hydroxy-3-methylsuccinate

(2S,3S)-2-Hydroxy-3-methyl-bernsteinsaeuredimethylester

二甲基(2S,3R)-2-羟基-3-甲基琥珀酸盐