Novel process for preparing 4-amino-5-hexanoic acid

Details Novel process for preparing 4-amino-5-hexanoic acid Novel process for preparing 4-amino-5-hexanoic acid

C - Chemistry, Metallurgy

07

C

C07C 229/30 (2006.01) C07C 69/73 (2006.01) C07C 69/732 (2006.01) C07C 227/20 (2006.01) C07C 233/47 (2006.01) C07C 257/06 (2006.01)

Patent

CA 2084109

This invention relates to a process for preparing 4- amino-5-hexenoic acid, which comprises rearranging erythri- tol to 4-formyl-3-hydroxy-1-butene, converting the latter to ethyl 6-formyloxy-4-hexenoate and thence to ethyl 6- hydroxy-4-hexenoate, converting the latter to ethyl 6- trichloroacetimidoxy-4-hexenoate followed by rearrangement to its imidate ethyl-4-trichloroacetoamido-5-hexenoate which, by hydrolysis, is converted to the desired 4-amino- 5-hexenoic acid, and optionally converting said acid to a pharmaceutically acceptable salt thereof. The invention also includes certain intermediate compounds. The 4-amino- 5-hexenoic acid is useful in the treatment of epilepsy.

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