Oxyphenisatine

Oxyphenisatine (or oxyphenisatin) is a laxative.[3] It is closely related to bisacodyl, sodium picosulfate, and phenolphthalein. Long-term use is associated with liver damage,[4] and as a result, it was withdrawn in most countries in the early 1970s. The acetate derivative oxyphenisatine acetate was also once used as a laxative.

Oxyphenisatine
Names
Preferred IUPAC name
3,3-Bis(4-hydroxyphenyl)-1,3-dihydro-2H-indol-2-one
Other names
Dihydroxydiphenylisatin;[1] Diphenolisatin;[1] Oxyphenisatin[1]
Identifiers
CAS Number
3D model (JSmol)
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.004.299
EC Number
  • 204-728-1
KEGG
PubChem CID
UNII
InChI
  • InChI=1S/C20H15NO3/c22-15-9-5-13(6-10-15)20(14-7-11-16(23)12-8-14)17-3-1-2-4-18(17)21-19(20)24/h1-12,22-23H,(H,21,24) Y
    Key: SJDACOMXKWHBOW-UHFFFAOYSA-N Y
  • InChI=1/C20H15NO3/c22-15-9-5-13(6-10-15)20(14-7-11-16(23)12-8-14)17-3-1-2-4-18(17)21-19(20)24/h1-12,22-23H,(H,21,24)
    Key: SJDACOMXKWHBOW-UHFFFAOYAU
SMILES
  • Oc1ccc(cc1)C1(C(=O)Nc2ccccc12)c1ccc(O)cc1
  • OC1=CC=C(C=C1)C1(C(=O)NC2=C1C=CC=C2)C1=CC=C(O)C=C1
Properties
Chemical formula
 C20H15NO3
Molar mass 317.344 g·mol−1
log P 1.398
Acidity (pKa) 9.423
Basicity (pKb) 4.574
Pharmacology
A06AB01 (WHO)
Oral, rectal
Legal status
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

Natural chemical compounds similar to oxyphenisatine may be present in prunes,[5] but a recent review of the relevant scientific literature suggests that the laxative effect of prunes is due to other constituents including phenolic compounds (mainly neochlorogenic acids and chlorogenic acids) and sorbitol.[6]

Synthesis

The ketone group of isatin (1) is nonenolizable and has interesting properties. In strong acid it becomes protonated, and the oxygen can be replaced by electron rich moieties.

Oxyphenisatin synthesis:[7]

In 1885, it was reported that condensation of isatin with phenol 2 leads to 3, which is Acetylated to (4). Oxyphenisatin has cathartic properties.

  • Triacetyldiphenolisatin (Laxagetten, Unilax, Trisatin), Nicoxyphenisatin & Cinnoxyphenisatin are chemical derivatives.

References
  1. SciFinder Scholar, version 2004.2; Chemical Abstracts Service, Registry Number 125-13-3, accessed September 1, 2011
  2. 21 CFR 216.24
  3. Farack, U. M.; Nell, G. (1984). "Mechanism of Action of Diphenolic Laxatives: The Role of Adenylate Cyclase and Mucosal Permeability". Digestion. 30 (3): 191–194. doi:10.1159/000199105. PMID 6548720.
  4. Kotha, P.; Rake, M. O.; Willatt, D. (1980). "Liver Damage Induced by Oxyphenisatin". British Medical Journal. 281 (6254): 1530. doi:10.1136/bmj.281.6254.1530. PMC 1714947. PMID 6893676.
  5. Baum, H. M.; Sanders, R. G.; Straub, G. J. (1951). "The Occurrence of a Diphenyl Isatin in California Prunes". Journal of the American Pharmaceutical Association. 40 (7): 348–349. doi:10.1002/jps.3030400713. PMID 14850362.
  6. Stacewicz-Sapuntzakis, M.; Bowen, P. E.; Hussain, E. A.; Damayanti-Wood, B. I.; Farnsworth, N. R. (2001). "Chemical Composition and Potential Health Effects of Prunes: A Functional Food?". Critical Reviews in Food Science and Nutrition. 41 (4): 251–286. doi:10.1080/20014091091814. PMID 11401245. S2CID 31159565.
  7. Baeyer, A.; Lazarus, M. J. (1885). "Ueber Condensationsproducte des Isatins". Berichte der Deutschen Chemischen Gesellschaft. 18 (2): 2637. doi:10.1002/cber.188501802170.


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