L-Alaninol → 3-(3-Butyl-5-methyl-isoxazol-4-ylmethoxy)-isoxazole-5-carboxylic acid ((S)-2-hydroxy-1-methyl-ethyl)-amide

Participants

Reaction Steps

As described for example 24b, 3-(3-butyl-5-methyl-isoxazol-4-ylmethoxy)-isoxazole-5-carboxylic acid methyl ester (199 mg, 0.68 mmol), was converted using (S)-1-hydroxymethylethylamine (61 mg, 0.81 mmol), instead of ethanolamine, to the title compound (148 mg, 65%) which was obtained as a colourless gum after purification by chromatography (silica, heptane:ethyl acetate=1:1 to 0:1). MS: m/e=338.4 [M+H]+.

Provenance & Evidence