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

1CHLORAMPHENICOL
2LEVOMICETINA
3LEVOMYCETIN
4LAEVOMYCETINUM
52,2-DICHLORO-N-[(1R,2R)-2-HYDROXY-1-(HYDROXYMETHYL)-2-(4-NITROPHENYL)ETHYL]ACETAMIDE
6D-(-)-THREO-1-P-NITROPHENYL-2-DICHLOROACETYLAMINO-1,3-PROPANEDIOL
7D-(-)-2,2-DICHLORO-N-(BETA-HYDROXY-ALPHA-(HYDROXYMETHYL)-P-NITROPHENYLETHYL)ACETAMIDE