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Fostedil
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. It has antihypertensive and antiarrhythmic effects. == Synthesis ==
#Treatment of benzanilide with phosphorus pentasulfide or Lawesson's reagent gives thioamide. #Oxidative ring formation by reaction with potassium ferricyanide and base (presumably involving a free radical intermediate) constructs the benzothiazole ring. #Bromination of this compound with N-bromosuccinimide produces bromomethyl intermediate. #The synthesis of fostedil concludes with a Michaelis-Arbuzov reaction with triethyl phosphite.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Fostedil」の詳細全文を読む
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