2-Butene, 1-bromo-3-methyl- → HCID 131718019, compound

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Reaction Steps

1-[1-(4-Hydroxybenzoyl)-4-piperidinyl]-3,4-dihydrocarbostyril (500 mg), prenyl bromide (0.5 ml) and 1,8-diazabicyclo[5.4.0]-undecene-7 (0.65 ml) are dissolved in isopropanol (10 ml) and the mixture is refluxed with heating for 4 hours. The solvent is distilled off under reduced pressure and the residue is purified by silica gel column chromatography (solvent; n-hexane:ethyl acetate=2:1) to give 1-{1-[4-(2-isopentenyloxy)benzoyl]-4-piperidinyl}-3,4-dihydrocarbostyril (0.159 g).

Provenance & Evidence