Sulfinalol

Sulfinalol

Sulfinalol

Chemical compound


Sulfinalol is a beta adrenergic receptor antagonist.[1]

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Synthesis

The methyl group on a sulfoxide is sufficiently acidic to substitute for phenolic hydroxyl.

Sulfinalol synthesis:[2] R. E. Philion, (1978 to Sterling), C.A. 90, 137468 (1979).

The preparation of this combined α- and β-blocker sulfinalol begins by protection of the phenolic hydroxyl as its benzoate ester. Bromination followed by condensation with 4-(4-methoxyphenyl)butan-2-amine (not PMA) gives the aminoketone 3. Successive catalytic reduction and saponification affords aminoalcohol 4. Oxidation of the sulfide to the sulfoxide with a reagent such as metaperiodate gives sulfinalol (5).


References

  1. Sybertz, E. J.; Baum, T.; Pula, K. K.; Nelson, S.; Eynon, E.; Sabin, C. (1982). "Studies on the mechanism of the acute antihypertensive and vasodilator actions of several beta-adrenoceptor antagonists". J. Cardiovasc. Pharmacol. 4 (5): 749–58. doi:10.1097/00005344-198209000-00009. PMID 6182405. S2CID 34100646.
  2. DE 2728641, Philion, Richard Everett, "4-Hydroxyphenylalkanolaminderivate und Verfahren zu deren Herstellung [4-Hydroxyphenylalkanolamine derivatives and processes preparation thereof]", published 1978-01-05, assigned to Sterling Drug Inc.




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