Английская Википедия:Fostedil

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Шаблон:Short description Шаблон:Drugbox

Fostedil (A-53,986, KB-944) is a vasodilator acting as a calcium channel blocker which was under development for the treatment of heart conditions such as angina pectoris but was never marketed.[1][2][3][4] It has antihypertensive and antiarrhythmic effects.[5][6][7]

Synthesis

Файл:Fostedil synthesis.png
Fostedil synthesis:[8]
  1. Treatment of benzanilide with phosphorus pentasulfide or Lawesson's reagent gives thioamide.
  2. Oxidative ring formation by reaction with potassium ferricyanide and base (presumably involving a free radical intermediate) constructs the benzothiazole ring.
  3. Bromination of this compound with N-bromosuccinimide produces bromomethyl intermediate.
  4. The synthesis of fostedil concludes with a Michaelis-Arbuzov reaction with triethyl phosphite.

See also

References

Шаблон:Reflist

Шаблон:PAH rx Шаблон:Antiarrhythmic agents Шаблон:Calcium channel blockers