(1S,4S,7S,8R)-4,8,11,11-tetramethyl-4-(hydroxymethyl)-6-oxa-3-aza-tricyclo[6.2.1.02,7]undec-2-en-5-one

(2S)-3-hydroxy-2-(N-benzyloxyamino)-2-methylpropionic acid

(S)-α-methylserine hydrochloride

2-acetamido-3-hydroxy-2-methylpropanoic acid

N-(甲氧基乙酰基)-2-甲基-L-丝氨酸