SMILES: CC1([C@@H](N2[C@H](S1)[C@@H](C2=O)N)C(=O)O)C
Description: The molecule is a penicillanic acid compound having a (6R)-amino substituent. The active nucleus common to all penicillins, it may be substituted at the 6-amino position to form the semisynthetic penicillins, resulting in a variety of antibacterial and pharmacologic characteristics. It has a role as an allergen. It derives from a penicillanic acid. It is a conjugate base of a 6-aminopenicillanate. It is a tautomer of a 6-aminopenicillanic acid zwitterion.