Cefradine

Cefradine (INN) or cephradine (BAN) is a first generation cephalosporin antibiotic.^[1]

Cefradine

Clinical data
Trade names	Intracef, Velocef
AHFS/Drugs.com	International Drug Names
MedlinePlus	a601206
Routes of administration	Oral, IM, IV
ATC code	J01DB09 (WHO)
Legal status
Legal status	In general: ℞ (Prescription only)
Pharmacokinetic data
Bioavailability	Well absorbed
Protein binding	<10%
Metabolism	Nil
Elimination half-life	0.9 hours
Excretion	Renal, unchanged
Identifiers
IUPAC name (6R,7R)-7-{[(2R)-2-Amino-2-(1-cyclohexa-1,4-dienyl)acetyl]amino}-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
CAS Number	38821-53-3 Y
PubChem CID	38103
IUPHAR/BPS	4830
DrugBank	DB01333 Y
ChemSpider	34933 Y
UNII	9YA6SX5S4D
KEGG	D00264 Y
ChEBI	CHEBI:3547 Y
ChEMBL	ChEMBL1604 Y
CompTox Dashboard (EPA)	DTXSID4022785
ECHA InfoCard	100.049.199
Chemical and physical data
Formula	C16H19N3O4S
Molar mass	349.41 g·mol−1
3D model (JSmol)	Interactive image
Melting point	140 to 142 °C (284 to 288 °F) (dec.)
SMILES O=C2N1/C(=C(\CS[C@@H]1[C@@H]2NC(=O)[C@@H](C/3=C/C\C=C/C\3)N)C)C(=O)O
InChI InChI=1S/C16H19N3O4S/c1-8-7-24-15-11(14(21)19(15)12(8)16(22)23)18-13(20)10(17)9-5-3-2-4-6-9/h2-3,6,10-11,15H,4-5,7,17H2,1H3,(H,18,20)(H,22,23)/t10-,11-,15-/m1/s1 Y Key:RDLPVSKMFDYCOR-UEKVPHQBSA-N Y
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Indications

• Respiratory tract infections (such as tonsillitis, pharyngitis, and lobar pneumonia) caused by group A beta-hemolytic streptococci and S. pneumoniae (formerly D. pneumonia).^{[note 1]}
• Otitis media caused by group A beta-hemolytic streptococci, S. pneumoniae, H. influenzae, and staphylococci.
• Skin and skin structure infections caused by staphylococci (penicillin-susceptible and penicillin-resistant) and beta-hemolytic streptococci.
• Urinary tract infections, including prostatitis, caused by E. coli, P. mirabilis and Klebsiella species.

Formulations

Cefradine is distributed in the form of capsules containing 250 mg or 500 mg, as a syrup containing 250 mg/5 ml, or in vials for injection containing 500 mg or 1 g.^{[citation needed]}

It is not approved by the FDA for use in the United States.^{[citation needed]}

Synthesis

Birch reduction of D-α-phenylglycine led to diene (2). This was N-protected using tert-butoxycarbonylazide and activated for amide formation via the mixed anhydride method using isobutylchloroformate to give 3. Mixed anhydride 3 reacted readily with 7-aminodesacetoxycephalosporanic acid to give, after deblocking, cephradine (5).

Cefradin synthesis:^[2][3][4]

Production names

The antibiotic is produced under many brand names across the world.^[5]

• Bangladesh: Ancef, Ancef forte, Aphrin, Avlosef, Cefadin, Cephadin, Cephran, Cephran-DS, Cusef, Cusef DS, Dicef , Dicef forte, Dolocef, Efrad, Elocef, Extracef, Extracef-DS, Intracef, Kefdrin, Lebac, Lebac Forte, Medicef, Mega-Cef, Megacin, Polycef, Procef, Procef, Procef forte, Rocef, Rocef Forte DS, Sefin, Sefin DS, Sefnin, Sefrad, Sefrad DS, Sefril, Sefril-DS, Sefro, Sefro-HS, Sephar, Sephar-DS, Septa, Sinaceph, SK-Cef, Sk-Cef DS, Supracef and Supracef-F, Torped, Ultrasef, Vecef, Vecef-DS, Velogen, Sinaceph, Velox
• China: Cefradine, Cephradine, Kebili, Saifuding, Shen You, Taididing, Velosef, Xianyi, and Xindadelei
• Colombia: Cefagram, Cefrakov, Cefranil , Cefrex, and Kliacef
• Egypt: Cefadrin, Cefadrine, Cephradine, Cephraforte, Farcosef, Fortecef, Mepadrin, Ultracef, and Velosef
• France: Dexef
• Hong Kong: Cefradine and ChinaQualisef-250
• Indonesia: Dynacef, Velodine, and Velodrom
• Lebanon: Eskacef, Julphacef, and Velosef
• Lithuania: Tafril
• Myanmar: Sinaceph
• Oman: Ceframed, Eskasef, Omadine, and Velocef
• Pakistan: Abidine, Ada-Cef, Ag-cef, Aksosef, Amspor, Anasef, Antimic, Atcosef, Bactocef, Biocef, Biodine, Velora, Velosef
• Peru: Abiocef, Cefradinal, Cefradur, Cefrid, Terbodina II, Velocef, Velomicin
• Philippines: Altozef, Racep, Senadex, Solphride, Yudinef, Zefadin, Zefradil, and Zolicef
• Poland: Tafril
• Portugal: Cefalmin, Cefradur
• South Africa: Cefril A
• South Korea: Cefradine and Tricef
• Taiwan: Cefadin, Cefamid, Cefin, Cekodin, Cephradine, Ceponin, Lacef, Licef-A, Lisacef, Lofadine, Recef, S-60, Sefree, Sephros, Topcef, Tydine, Unifradine, and U-Save
• UK: Cefradune (Kent)
• Vietnam: Eurosefro and Incef

See also

• Cephapirin
• Cephacetrile
• Cefamandole
• Ampicillin (Has the same chemical formula)

Notes

1. Penicillin is the usual drug of choice in the treatment and prevention of streptococcal infections, including the prophylaxis of rheumatic fever. Cefuroxime is generally effective in the eradication of streptococci from the nasopharynx