Urea fusion process for the synthesis of...

Details Urea fusion process for the synthesis of... Urea fusion process for the synthesis of...

C - Chemistry, Metallurgy

07

D

C07D 205/04 (2006.01)

Patent

CA 2083440

AHR-474 PATENT ABSTRACT UREA FUSION PROCESS FOR THE SYNTHESIS OF 3-PHENOXY-1-AZETIDINECARESOXAMIDES This invention relates to an improved process for the preparation of 3-phenoxy-1- azetidinecarboxamides of Formula I which are useful Image Formula I in the treatment of epileptic seizures. Under Forrnula I, n is 1 to 3, X is H, halogen, trifluoromethyl, C1-C4 alkyl, C1-C4 alkoxy, acetyl, or aminocarbonyl, and R is H or methyl. This process involves heating a 3-phenoxyazetidine with urea to obtain the Formula I compound. Urea is inexpensive and easily removed by washing the solid Formula I product with water.

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