ethyl (2S)-2-aminopent-4-enoate

(2S)-氨基-n-[(1r,2r)-2-羟基-1-甲基-2-苯基乙基]-n-甲基-4-戊酰胺

(3S,6S)-3-methyl-6-(prop-2-enyl)piperazine-2,5-dione

(3S,6S)-3-methyl-6-(prop-2-enyl)-1,4-di-((S)-1-phenylethyl)piperazine-2,5-dione

2-((tert-Butyloxycarbonyl)amino)-N-methoxy-4-pentenamide