(5Z)-1-羟基-3-(2-甲基丙基)-5-(2-甲基丙亚基)吡嗪-2,6-二酮

(S)-3-Isobutyl-4-(4-methoxy-benzyl)-1-methoxymethoxy-5-[2-methyl-prop-(Z)-ylidene]-piperazine-2,6-dione

5-Isobutyl-1-methoxymethoxy-3-[2-methyl-prop-(Z)-ylidene]-3H-pyrazine-2,6-dione

N-p-methoxybenzyl-N-(1-tert-butoxy-acet-2-yl)-(S)-leucine methyl ester

N-p-methoxybenzyl-N-carboxymethyl-(S)-leucine methyl ester

L-亮氨酸甲酯盐酸盐

1-methoxymethoxy-3S-isobutyl-4-p-methoxybenzylpiperazine-2,6-dione

(S)-1-Hydroxy-3-isobutyl-4-(4-methoxy-benzyl)-piperazine-2,6-dione

Methanesulfonic acid (R)-1-[(2S,6S)-6-isobutyl-1-(4-methoxy-benzyl)-4-methoxymethoxy-3,5-dioxo-piperazin-2-yl]-2-methyl-propyl ester

N-(1-tert-butoxy-acet-2-yl)-(S)-leucine methyl ester

(S)-methyl 2-((2-(hydroxyamino)-2-oxoethyl)(4-methoxybenzyl)amino)-4-methylpentanoate

(S)-2-[(2,5-Dioxo-pyrrolidin-1-yloxycarbonylmethyl)-(4-methoxy-benzyl)-amino]-4-methyl-pentanoic acid methyl ester