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![Structure of 4-[2,6-dioxohexahydropyrimidin-4(S)-ylcarboxamido]-L-phenylalanyl-4-ureido-D-phenylalanyl-L-leucyl-N6-isopropyl-L-lysyl CAS PNA-2731](https://www.watson-int.com/wp-content/uploads/2019/09/Structure-of-4-26-dioxohexahydropyrimidin-4S-ylcarboxamido-L-phenylalanyl-4-ureido-D-phenylalanyl-L-leucyl-N6-isopropyl-L-lysyl-CAS-PNA-2731.png "Structure of 4-[2,6-dioxohexahydropyrimidin-4(S)-ylcarboxamido]-L-phenylalanyl-4-ureido-D-phenylalanyl-L-leucyl-N6-isopropyl-L-lysyl <span class=\"caps\">CAS</span> <span class=\"caps\">PNA-2731</span>")
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