Sulfanilamide

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Sulfanilamide
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Identifiers
  • 4-aminobenzenesulfonamide
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Chemical and physical data
Formula C6H8N2O2S
Molar mass 172.20 g·mol−1
3D model (JSmol)
Density 1.08 g/cm3
Melting point 165 °C (329 °F)
  • O=S(=O)(c1ccc(N)cc1)N
  • InChI=1S/C6H8N2O2S/c7-5-1-3-6(4-2-5)11(8,9)10/h1-4H,7H2,(H2,8,9,10) Yes check.svgY
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Sulfanilamide (also spelled sulphanilamide) is a sulfonamide antibacterial drug. Chemically, it is an organic compound consisting of an aniline derivatized with a sulfonamide group. [1] Powdered sulfanilamide was used by the Allies in World War II to reduce infection rates and contributed to a dramatic reduction in mortality rates compared to previous wars. [2] [3] Sulfanilamide is rarely if ever used systemically due to toxicity and because more effective sulfonamides are available for this purpose. Modern antibiotics have supplanted sulfanilamide on the battlefield; however, sulfanilamide remains in use today in the form of topical preparations, primarily for treatment of vaginal yeast infections such as vulvovaginitis caused by Candida albicans . [4] [5] [6] [7]

Contents

The term "sulfanilamides" is also sometimes used to describe a family of molecules containing these functional groups. Examples include:

Mechanism of action

As a sulfonamide antibiotic, sulfanilamide functions by competitively inhibiting (that is, by acting as a substrate analogue of) enzymatic reactions involving para-aminobenzoic acid (PABA). [8] [9] Specifically, it competitively inhibits the enzyme dihydropteroate synthase. [5] [10] PABA is needed in enzymatic reactions that produce folic acid, which acts as a coenzyme in the synthesis of purines and pyrimidines. Mammals do not synthesize their own folic acid so are unaffected by PABA inhibitors, which selectively kill bacteria. [11]

However, this effect can be reversed by adding the end products of one-carbon transfer reactions, such as thymidine, purines, methionine, and serine. PABA can also reverse the effects of sulfonamides. [5] [12] [11]

History

Sulfanilamide was first prepared in 1908 by the Austrian chemist Paul Josef Jakob Gelmo (1879–1961) [13] [14] as part of his dissertation for a doctoral degree from the Technische Hochschule of Vienna. [15] It was patented in 1909. [16]

Gerhard Domagk, who directed the testing of the prodrug Prontosil in 1935, [17] and Jacques Tréfouël and Thérèse Tréfouël, who along with Federico Nitti and Daniel Bovet in the laboratory of Ernest Fourneau at the Pasteur Institute, determined sulfanilamide as the active form, [18] are generally credited with the discovery of sulfanilamide as a chemotherapeutic agent. Domagk was awarded the Nobel Prize for his work. [19]

In 1937, Elixir sulfanilamide, a medicine consisting of sulfanilamide dissolved in diethylene glycol, poisoned and killed more than one hundred people as a result of acute kidney failure, prompting new US regulations for drug testing. In 1938, the Food, Drug and Cosmetic Act was passed. It was only the solvent and not the sulfanilamide that was the problem, as sulfanilamide was widely and safely used at the time in both tablet and powder form. [20]

Chemical and physical properties

Laboratory synthesized sulfanilamide Sulfanilamid.jpg
Laboratory synthesized sulfanilamide

Sulfanilamide is a yellowish-white or white crystal or fine powder. It has a density of 1.08 g/cm3 and a melting point of 164.5-166.5 °C. The pH of a 0.5% aqueous solution of Sulfanilamide is 5.8 to 6.1. It has a λmax of 255 and 312 nm. [5]

Solubility: One gram of sulphanilamide dissolves in approximately 37 ml alcohol or in 5 ml acetone. It is practically insoluble in chloroform, ether, or benzene. [5]

Contraindications

Sulfanilamide is contraindicated in those known to be hypersensitive to sulfonamides, in nursing mothers, during pregnancy near term, and in infants less than two months of age. [5]

Adverse effects

Since sulfanilamide is used almost exclusively in topical vaginal preparations these days, adverse effects are typically limited to hypersensitivity or local skin reactions. If absorbed, systemic side effects commonly seen with sulfanilamides may occur. [5]

Pharmacokinetics

A small amount of sulfanilamide is absorbed following topical application or when administered as a vaginal cream or suppository (through the vaginal mucosa). It is metabolized by acetylation like other sulfonamides and excreted through the urine. [5]

Related Research Articles

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4-Aminobenzoic acid (also known as para-aminobenzoic acid or PABA because the two functional groups are attached to the benzene ring across from one another in the para position) is an organic compound with the formula H2NC6H4CO2H. PABA is a white solid, although commercial samples can appear gray. It is slightly soluble in water. It consists of a benzene ring substituted with amino and carboxyl groups. The compound occurs extensively in the natural world.

<span class="mw-page-title-main">Gerhard Domagk</span> German bacteriologist (1895–1964)

Gerhard Johannes Paul Domagk was a German pathologist and bacteriologist.

<span class="mw-page-title-main">Sulfonamide (medicine)</span> Molecular moiety or the drug class that uses it

Sulfonamide is a functional group that is the basis of several groups of drugs, which are called sulphonamides, sulfa drugs or sulpha drugs. The original antibacterial sulfonamides are synthetic (nonantibiotic) antimicrobial agents that contain the sulfonamide group. Some sulfonamides are also devoid of antibacterial activity, e.g., the anticonvulsant sultiame. The sulfonylureas and thiazide diuretics are newer drug groups based upon the antibacterial sulfonamides.

<span class="mw-page-title-main">Dapsone</span> Antibiotic medication

Dapsone, also known as 4,4'-sulfonyldianiline (SDA) or diaminodiphenyl sulfone (DDS), is an antibiotic commonly used in combination with rifampicin and clofazimine for the treatment of leprosy. It is a second-line medication for the treatment and prevention of pneumocystis pneumonia and for the prevention of toxoplasmosis in those who have poor immune function. Additionally, it has been used for acne, dermatitis herpetiformis, and various other skin conditions. Dapsone is available both topically and by mouth.

<span class="mw-page-title-main">Folinic acid</span> Derivative of folic acid used in cancer treatment

Folinic acid, also known as leucovorin, is a medication used to decrease the toxic effects of methotrexate and pyrimethamine. It is also used in combination with 5-fluorouracil to treat colorectal cancer and pancreatic cancer, may be used to treat folate deficiency that results in anemia, and methanol poisoning. It is taken by mouth, injection into a muscle, or injection into a vein.

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<span class="mw-page-title-main">Antimetabolite</span> Chemical that inhibits the use of a metabolite

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<span class="mw-page-title-main">Sulfadimethoxine</span> Chemical compound

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<span class="mw-page-title-main">Sulfapyridine</span> Chemical compound

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<i>The Demon Under the Microscope</i> Book by Thomas Hager

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<span class="mw-page-title-main">Thérèse Tréfouël</span> French biochemist

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Paul Josef Jakob Gelmo was an Austrian chemist who worked on synthetic dyes and discovered sulfanilamide in 1908, although their antibiotic properties were discovered only in 1932.

References

  1. ↑ Actor P, Chow AW, Dutko FJ, McKinlay MA. "Chemotherapeutics". Ullmann's Encyclopedia of Industrial Chemistry . Weinheim: Wiley-VCH. doi:10.1002/14356007.a06_173. ISBN   978-3527306732.
  2. ↑ Steinert D (2000). "The Use of Sulfanilamide in World War II". The History of WWII Medicine. Archived from the original on 7 June 2016.
  3. ↑ "Class 9 Items: Drugs, Chemicals and Biological Stains Sulfa Drugs". Library of Congress Web Archives. Archived from the original on 4 December 2013. Retrieved 13 June 2014.
  4. ↑ "Sulfanilamide". PubChem. National Center for Biotechnology Information (NCBI), U.S. National Library of Medicine.
  5. 1 2 3 4 5 6 7 8 Scholar E (1 January 2007). "Sulfanilamide". In Enna SJ, Bylund DB (eds.). xPharm: The Comprehensive Pharmacology Reference. New York: Elsevier. pp. 1–5. doi:10.1016/b978-008055232-3.62694-7. ISBN   978-0-08-055232-3 . Retrieved 2 October 2021.
  6. ↑ "US FDA Label: AVC (sulfanilamide) Vaginal Cream 15%" (PDF). United States Food & Drug Administration. Retrieved 3 October 2021.
  7. ↑ "Drugs@FDA: FDA-Approved Drugs". www.accessdata.fda.gov. Retrieved 2 October 2021.
  8. ↑ Castelli LA, Nguyen NP, Macreadie IG (May 2001). "Sulfa drug screening in yeast: fifteen sulfa drugs compete with p-aminobenzoate in Saccharomyces cerevisiae". FEMS Microbiology Letters. 199 (2): 181–4. doi: 10.1111/j.1574-6968.2001.tb10671.x . PMID   11377864.
  9. ↑ Kent M (2000). Advanced Biology. Oxford University Press. p. 46. ISBN   978-0-19-914195-1.
  10. ↑ Sharma S (January 1997). "Chapter 18 - Antifolates". In Sharma S, Anand N (eds.). Pharmacochemistry Library. Approaches to Design and Synthesis of Antiparasitic Drugs. Vol. 25. Elsevier. pp. 439–454. doi:10.1016/s0165-7208(97)80040-2. ISBN   9780444894762.
  11. 1 2 Brunton LL, Hilal-Dandan R, Knollmann BC (2018). Goodman & Gilman's the pharmacological basis of therapeutics (13th ed.). New York: McGraw Hill Education. ISBN   978-1-259-58473-2. OCLC   993810322.
  12. ↑ Wormser GP, Chambers HF (1 February 2001). "The Antimicrobial Drugs, Second Edition by Eric Scholar and William Pratt New York: Oxford University Press, 2000. 607 pp., illustrated. $98.50 (cloth); $69.50 (paper)". Clinical Infectious Diseases. 32 (3): 521. doi: 10.1086/318515 . ISSN   1058-4838.
  13. ↑ Gelmo P (1908). "Über Sulfamide der p-Amidobenzolsulfonsäure". Journal für Praktische Chemie. 77 (1): 369–382. doi:10.1002/prac.19080770129. ISSN   1521-3897.
  14. ↑ "Paul Gelmo". Encyclopedia.com.
  15. ↑ Gelmo P (14 May 1908). "Über Sulfamide der p-Amidobenzolsulfonsäure". Journal für Praktische Chemie. 77: 369–382. doi:10.1002/prac.19080770129.
  16. ↑ On 18 May 1909, Deutsches Reich Patentschrift number 226,239 for sulfanilamide was awarded to Heinrich Hörlein of the Bayer corporation.
  17. ↑ Domagk G (15 February 1935). "Ein Beitrag zur Chemotherapie der bakteriellen Infektionen". Deutsche Medizinische Wochenschrift. 61 (7): 250. doi:10.1055/s-0028-1129486. S2CID   70515565.
  18. ↑ Tréfouël J, Tréfouël T, Nitti F, Bovet D (23 November 1935). "Activité du p-aminophénylsulfamide sur l'infection streptococcique expérimentale de la souris et du lapin". C. R. Soc. Biol. 120: 756.
  19. ↑ Bovet D (1988). "Les étapes de la découverte de la sulfamidochrysoïdine dans les laboratoires de recherche de la firme Bayer à Wuppertal-Elberfeld (1927–1932)". Une chimie qui guérit : Histoire de la découverte des sulfamides. Médecine et Société (in French). Paris: Payot. p. 307.
  20. ↑ Ballentine C. "Sulfanilamide Disaster" (PDF). fda.gov. FDA. Retrieved 5 May 2022.
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