(S)-α-Ethylalanine·H2O
(R)-α-Methylaspartic acid
(S)-α-Methylaspartic acid -4-tert-butyl ester
(R)-α-Methylaspartic acid -4-tert-butyl ester
(S)-N-Fmoc-α-Methylaspartic acid -4-tert-butyl ester