<prompt> Tšweletša phetolelo e raraganego ya polelo ye Claisen rearrangemente tšwela pele ka go fiša di-alcohol tša allylic ka go ba gona ga N, N -dimethylacetamide dimethyl acetal go bopa γ, δ - unsaturated amide.  <response>: Ee, phetolelo e raraganego kudu ya polelo ke go beakanywa lefsa ga Claisen go tšwa go alkoholo ya allylic go ya go γ, δ - unsaturated amide, gomme e tšweleditšwe ke Albert Eschenmoser ka 1964. 