(S)-2-(3,5-dinitro-4-oxopyridin-1(4H)-yl)-3-(4-hydroxyphenyl)propanoic acid

对硝基苯胺

甘油-L-脯氨酸

(2S)-2-[[4-[[(1S)-1-carboxy-2-(4-hydroxyphenyl)ethyl]amino]-4-oxobutanoyl]amino]-3-(4-hydroxyphenyl)propanoic acid