Azlocillin

Azlocillin

File:Azlocillin skeletal.svg
Systematic (IUPAC) name
(2S,5R,6R)-3,3-dimethyl-7-oxo-6-{[(2R)-2-{[(2-oxoimidazolidin-1-yl)carbonyl]amino}-2-phenylacetyl]amino}-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
Clinical data
AHFS/Drugs.com	International Drug Names
Identifiers
CAS Number	37091-66-0 Y
ATC code	J01CA09 (WHO)
PubChem	CID: 6479523
DrugBank	DB01061 Y
ChemSpider	4980416 Y
UNII	HUM6H389W0 Y
KEGG	D02339 Y
ChEBI	CHEBI:2956 Y
ChEMBL	CHEMBL1537 Y
Chemical data
Formula	C20H23N5O6S
Molecular mass	461.491 g/mol
SMILES O=C(O)[C@@H]3N4C(=O)[C@@H](NC(=O)[C@@H](c1ccccc1)NC(=O)N2C(=O)NCC2)[C@H]4SC3(C)C
InChI InChI=1S/C20H23N5O6S/c1-20(2)13(17(28)29)25-15(27)12(16(25)32-20)22-14(26)11(10-6-4-3-5-7-10)23-19(31)24-9-8-21-18(24)30/h3-7,11-13,16H,8-9H2,1-2H3,(H,21,30)(H,22,26)(H,23,31)(H,28,29)/t11-,12-,13+,16-/m1/s1 Y Key:JTWOMNBEOCYFNV-NFFDBFGFSA-N Y
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Azlocillin is an acylampicillin antibiotic with an extended spectrum of activity and greater in vitro potency than the carboxy penicillins. Azlocillin is similar to mezlocillin and piperacillin. It demonstrates antibacterial activity against a broad spectrum of bacteria, including Pseudomonas aeruginosa and, in contrast to most cephalosporins, exhibits activity against enterococci.

Spectrum of bacterial susceptibility

Azlocillin is considered a broad spectrum antibiotic and can be used against a number of Gram positive and Gram negative bacteria. The following represents MIC susceptibility data for a few medically significant organisms.

• Escherichia coli 1 μg/mL – 32 μg/mL
• Haemophilus spp. 0.03 μg/mL – 2 μg/mL
• Pseudomonas aeruginosa 4 μg/mL – 6.25 μg/mL

Synthesis

File:Azlocillin synthesis.svg

Azlocillin synthesis: FR 2100682  eidem U.S. Patent 3,933,795

File:Azlocillin synthesis2.svg

Azlocillin synthesis 2:

An interesting alternative synthesis of azlocillin involves activation of the substituted phenylglycine analogue 1 with 1,3-dimethyl-2-chloro-1-imidazolinium chloride (2) and then condensation with 6-APA.

See also

• Methicillin