2-Amino-1-butanol, (+)- → 2-[(E)-2-(3-Butyl-5-methyl-isoxazol-4-yl)-vinyl]-4-methyl-thiazole-5-carboxylic acid ((S)-1-hydroxymethyl-propyl)-amide

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Reaction Steps

As described for example 105, 2-[(E)-2-(3-butyl-5-methyl-isoxazol-4-yl)-vinyl]-4-methyl-thiazole-5-carboxylic acid (153 mg, 0.5 mmol) was converted, using (S)-2-amino-1-butanol instead of (R)-2-amino-1-butanol, to the title compound (150 mg, 79%) which was obtained as a light yellow solid after purification by chromatography (silica, 50 to 100% ethyl acetate in heptane) and recrystallization from ethyl acetate/heptane. MS: m/e=378.4 [M+H]+.

Provenance & Evidence