The Practical Synthesis of a Uterine Relaxant, Bis(2-{[(2S)-2-({(2R)-2-hydroxy-2-[4-hydroxy-3-(2-hydroxyethyl)-phenyl]ethyl}amino)-1, 2, 3, 4-tetrahydronaphthalen-7-yl]oxy}-N, N-dimethylacetamide)Sulfate(KUR-1246)

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The synthetic route for a uterine relaxant, bis(2-{[(2S)-2-({(2R)-2-hydroxy-2-[4-hydroxy-3-(2-hydroxyethyl)-phenyl]ethyl}amino)-1, 2, 3, 4-tetrahydronaphthalen-7-yl]oxy}-N, N-dimethylacetamide)sulfate(KUR-1246), was established by the coupling of oprically active components, the bromohydrin 14 and the amine 24. We now describe the practical synthesis of these two optically active components. Bromohydrin 14 was obtained by the asymmetric borane reduction of the prochiral phenacyl bromide 13 using a catalyst prepared from aluminum triethoxide and a chiral amino alcohol. The other optically active component 24 was prepared from(S)-AMT.
公益社団法人日本薬学会の論文
2001-08-01