(S)-3-tert-Butylcarbamoyl-4,4-dimethyl-pentanoic acid benzyl ester

tert-butyl-succinic acid

5-(hydroxy-24-trioxidaneyl)-44,53,74-decaoxidane-4,7-dione

(+)-(S)-2-t-butylbutane-1,4-dioic acid

(S)-tert-butylsuccinic acid anhydride