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Antiinfective agent stubs
Amprolium
Другие языки:

Amprolium

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Amprolium
Amprolium.svg
Names
Preferred IUPAC name
1-[(4-Amino-2-propylpyrimidin-5-yl)methyl]-2-methylpyridin-1-ium chloride
Other names
1-[(4-Amino-2-propyl-5-pyrimidinyl)methyl]-2-picolinium chloride, Amprovine, Amprolium, Amprol, Anticoccid
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.004.054
EC Number
  • 204-458-4
MeSH Amprolium
PubChem CID
UNII
  • InChI=1S/C14H19N4.ClH/c1-3-6-13-16-9-12(14(15)17-13)10-18-8-5-4-7-11(18)2;/h4-5,7-9H,3,6,10H2,1-2H3,(H2,15,16,17);1H/q+1;/p-1 checkY
    Key: LCTXBFGHZLGBNU-UHFFFAOYSA-M checkY
  • InChI=1/C14H19N4.ClH/c1-3-6-13-16-9-12(14(15)17-13)10-18-8-5-4-7-11(18)2;/h4-5,7-9H,3,6,10H2,1-2H3,(H2,15,16,17);1H/q+1;/p-1
    Key: LCTXBFGHZLGBNU-REWHXWOFAP
  • [Cl-].n1c(c(cnc1CCC)C[n+]2ccccc2C)N
Properties
C14H19N4+ · Cl−
Molar mass 278.780 g·mol−1
Pharmacology
QP51AX09 (WHO)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Amprolium is the organic compound sold as a coccidiostat used in poultry. It has many International Nonproprietary Names.

Uses in coccidiosis treatment in poultry

The drug is a thiamine analogue and blocks the thiamine transporter of Eimeria species. By blocking thiamine uptake it prevents carbohydrate synthesis.

Despite only moderate efficacy it is well favoured due to few resistance issues and is commonly used in the United States in conjunction with sulfonamides prophylactically in chickens and cattle as a coccidiostat.

Synthesis

Amprolium synthesis Rogers, Sarett, U.S. Patent 3,020,277 (1962 to Merck & Co.), see also U.S. Patent 3,020,200

Condensation of ethoxymethylenemalononitrile (1) with acetamidine (2) affords the substituted pyrimidine (4). The reaction may well involve conjugate addition of the amidine nitrogen to the malononitrile followed by loss of ethoxide (3); addition of the remaining amidine nitrogen to one of the nitriles will then lead to the pyrimidine (4). Reduction of the nitrile gives the corresponding aminomethyl compound (5). Exhaustive methylation of the amine followed by displacement of the activated quaternary nitrogen by bromide ion affords the key intermediate (7). Displacement of the halogen by α-picoline gives amprolium.



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