SMILES: CC1([C@@H](N2[C@H](S1)[C@@H](C2=O)NC(=O)[C@@H](C3=CC=CC=C3)N)C(=O)OC4C5=CC=CC=C5C(=O)O4)C
Description: The molecule is a penicillanic acid ester that is the 1-phthalidyl ester of ampicillin. It is a prodrug of ampicillin. It has a role as a prodrug. It derives from an ampicillin and an o-phthalaldehydic acid.