AIC as a free ligand exists in 8 entries. Examples include: 1NX9 3ITA 2RDD

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View summary at Ligand Expo

Chemical Component Summary

Identifiers(2S,5R,6R)-6-[[(2R)-2-amino-2-phenyl-ethanoyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
FormulaC16 H19 N3 O4 S
Molecular Weight349.40
Isomeric SMILESCC1(C)S[C@@H]2[C@H](NC(=O)[C@H](N)c3ccccc3)C(=O)N2[C@H]1C(O)=O

Chemical Details

Formal Charge0
Atom Count43
Chiral Atom Count4
Chiral AtomsC12, C13, C14, C4
Bond Count45
Aromatic Bond Count6
Leaving Atomsn/a

Drug Info: DrugBank

DrugBank IDDB00415 Different stereochemistry
  • approved
  • vet_approved
DescriptionAmpicillin is a semi-synthetic derivative of penicillin that functions as an orally active broad-spectrum antibiotic.
  • (2S,6R)-6-{[(2R)-2-amino-2-phenylethanoyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
  • 6-(D-(2-amino-2-phenylacetamido))-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid
  • ABPC
  • Aminobenzylpenicillin
  • AMP
  • Ampicillin sodium
  • Ampicillin trihydrate
Brand Names
  • Ampicillin
  • Ampicillin Sodium
  • Ampicillin Sodium and Sulbactam Sodium
  • Ampicillin Sodium for Injection,
Affected Organism
  • Enteric bacteria and other eubacteria
  • Gram-negative Bacteria
  • Gram-positive Bacteria
  • Streptococcus pyogenes
  • Streptococcus pneumoniae
IndicationFor treatment of infection (Respiratory, GI, UTI and meningitis) due to E. coli, P. mirabilis, enterococci, Shigella, S. typhosa and other Salmonella, nonpenicillinase-producing N. gononhoeae, H. influenzae, staphylococci, streptococci including streptoc
PharmacologyAmpicillin is a penicillin beta-lactam antibiotic used in the treatment of bacterial infections caused by susceptible, usually gram-positive, organisms. The name "penicillin" can either refer to several variants of penicillin available, or to the group of antibiotics derived from the penicillins. Ampicillin has <i>in vitro</i> activity against gram-positive and gram-negative aerobic and anaerobic bacteria. The bactericidal activity of Ampicillin results from the inhibition of cell wall synthesis and is mediated through Ampicillin binding to penicillin binding proteins (PBPs). Ampicillin is stable against hydrolysis by a variety of beta-lactamases, including penicillinases, and cephalosporinases and extended spectrum beta-lactamases.
Mechanism of actionBy binding to specific penicillin-binding proteins (PBPs) located inside the bacterial cell wall, Ampicillin inhibits the third and last stage of bacterial cell wall synthesis. Cell lysis is then mediated by bacterial cell wall autolytic enzymes such as autolysins; it is possible that Ampicillin interferes with an autolysin inhibitor.
Route of administration
  • Intramuscular; Intravenous
  • Intravenous
  • Oral
  • Amides
  • Anti-Bacterial Agents
  • Anti-Infective Agents
  • Antibacterials for Systemic Use
  • Antiinfectives for Systemic Use
  • S01AA19
  • J01CA01
  • J01CR01
  • J01CA51
CAS number69-53-4
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682