(3R,6S)-3-[(1-Hydroxy-1-methyl)ethyl]-2,5-dimethoxy-3,6-dimethyl-3,6-dihydropyrazin

丙氨酸谷氨酸盐

丙氨酰谷氨酰胺

丙氨酰组氨酸

3-amino-2-hydroxybutanoic acid