Clavam

A clavam is a molecule similar to a penam, but with an oxygen substituted for the sulfur.^[1] Thus, they are also known as oxapenams.

An example is clavulanic acid,^[2] from which this compound class receives its name.

References

↑ "Medscape.com". Retrieved 2008-12-29.
↑ Chemical Research Laboratory, Oxford University (The Schofield Group). "Antibiotic Biosynthesis, Clavulanic Acid Mode of Action and Biosynthesis". Retrieved 2011-07-25.

Antibacterials: cell envelope antibiotics (J01C-J01D)

Intracellular

Inhibit peptidoglycan subunit synthesis and transport: NAM synthesis inhibition (Fosfomycin)
DADAL/AR inhibitors (Cycloserine)
bactoprenol inhibitors (Bacitracin)

Glycopeptide

Inhibit PG chain elongation: Vancomycin^# (Oritavancin
Telavancin)
Teicoplanin (Dalbavancin)
Ramoplanin

β-lactams/
(Inhibit PBP
cross-links)

Penicillins
(Penams)

Narrow Spectrum

β-lactamase Sensitive (1st Generation)	Benzylpenicillin (G)^# Benzathine benzylpenicillin^# Procaine benzylpenicillin^# Phenoxymethylpenicillin (V)^# Propicillin^‡ Pheneticillin^‡ Azidocillin^‡ Clometocillin^‡ Penamecillin^‡

β-lactamase Resistant (2nd Generation)	Cloxacillin^# (Dicloxacillin Flucloxacillin) Oxacillin Nafcillin Methicillin^‡

Extended Spectrum

Aminopenicillins (3rd Generation)	Amoxicillin^# Ampicillin^# (Pivampicillin Hetacillin^‡ Bacampicillin^‡ Metampicillin^‡ Talampicillin^‡) Epicillin^‡

Carboxypenicillins (4th Generation)	Ticarcillin Carbenicillin^‡ / Carindacillin^‡ Temocillin^‡

Ureidopenicillins (4th Generation)	Piperacillin Azlocillin^‡ Mezlocillin^‡

Other	Mecillinam^‡ (Pivmecillinam^‡) Sulbenicillin^‡

Penems

Faropenem^‡

Carbapenems

Cephalosporins/Cephamycins
(Cephems)

1st Generation (P Ec K)	Cefazolin^# Cefalexin ^# Cefadroxil Cefapirin Cefazedone^‡ Cefazaflur^‡ Cefradine^‡ Cefroxadine^‡ Ceftezole^‡ Cefaloglycin^‡ Cefacetrile^‡ Cefalonium^‡ Cefaloridine^‡ Cefalotin^‡ Cefatrizine^‡

2nd Generation (H E N)	Cefaclor Cefotetan Cephamycin (Cefoxitin Cefprozil Cefuroxime Cefuroxime axetil Cefamandole^‡ Cefminox^‡ Cefonicid^‡ Ceforanide^‡ Cefotiam^‡ Cefbuperazone^‡ Cefuzonam^‡ Cefmetazole)^‡ Carbacephem^‡ (Loracarbef^‡)

3rd Generation	Cefixime^# Ceftriaxone^# Antipseudomonal (Ceftazidime^# Cefoperazone) Cefdinir Cefcapene Cefdaloxime Ceftizoxime Cefmenoxime Cefotaxime Cefpiramide Cefpodoxime Ceftibuten Cefditoren Cefetamet^‡ Cefodizime^‡ Cefpimizole^‡ Cefsulodin^‡ Cefteram^‡ Ceftiolene^‡ Oxacephem (Flomoxef^‡ Latamoxef^‡‡)

4th Generation (Pseudomonas)	Cefepime Cefozopran^‡ Cefpirome^‡ Cefquinome^‡

5th Generation	Ceftaroline fosamil Ceftolozane Ceftobiprole^‡

Veterinary	Ceftiofur Cefquinome Cefovecin

Monobactams

β-lactamase Inhibitors

Combinations

Other

polymyxins/detergent
- Colistin
- Polymyxin B
depolarizing
- Daptomycin
Hydrolyze NAM-NAG
- lysozyme
Gramicidin
Isoniazid
Teixobactin

^#WHO-EM
^‡Withdrawn from market
Clinical trials:
- ^†Phase III
- ^§Never to phase III

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