2-[[4-[[2-amino-5-[[1-[4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-2,4-dioxopyrimidin-5-yl]methyl]-4-oxo-1,6-dihydropteridin-6-yl]methylamino]benzoyl]amino]pentanedioic Acid
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双[5-醛基-4-甲基-3-吡咯丙酸甲酯-2-基]甲烷