Ethyl 3-(2,4-dimethyl-imidazol-1-yl)-benzoate → 3-[3-(2,4-Dimethyl-imidazol-1-yl)-phenyl]-3-oxo-propionic acid tert.-butyl ester

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Reaction Steps

Prepared from ethyl 3-(2,4-dimethyl-imidazol-1-yl)-benzoate [prepared by reaction of ethyl 3-aminobenzoate with ethyl acetimidate hydrochloride in EtOH at 0° C., direct treatment with 2-aminopropionaldehyde dimethyl acetal in EtOH at 23° C., follwed by addition of conc. H2SO4 and refluxing.] by treatment with lithium tert.-butyl acetate according to general procedure H (method b). Obtained as a yellow-brown oil (6.00 g).

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