SMILES: CC(C)[C@H](C(=O)O)NC(=O)[C@H](CS)NC(=O)CCC[C@@H](C(=O)O)N
Description: The molecule is a tripeptoid arising from cleavage of both rings of a penicillin derivative. It is a conjugate acid of a N-[(5S)-5-ammonio-5-carboxylatopentanoyl]-L-cysteinyl-D-valinate.