The name/synonym for ligand PPY (curated from ChEBI, PubChem, and PDB databases):

1KETO-PHENYLPYRUVIC ACID
2ALPHA-OXO-BENZENEPROPANOIC ACID
3BETA-PHENYLPYRUVIC ACID
42-OXO-3-PHENYLPROPANOIC ACID
53-PHENYL-2-OXOPROPANOIC ACID
6PHENYLBRENZTRAUBENSAEURE
73-PHENYLPYRUVIC ACID
8PHENYLPYRUVATE
9ALPHA-KETOHYDROCINNAMIC ACID
10KETO-PHENYLPYRUVATE
11PHENYLPYRUVIC ACID
123-PHENYL-2-OXOPROPANOATE