A chemoenzymatic approach to the synthesis of the stereoisomers of a β-adrenergic receptor antagonist

…, G Carrea, F Secundo, S Castellano, C De Micheli

文献索引：Dallanoce, Clelia; De Amici, Marco; Carrea, Giacomo; Secundo, Francesco; Castellano, Sabrina; De Micheli, Carlo Tetrahedron Asymmetry, 2000 , vol. 11, # 13 p. 2741 - 2751

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被引用次数: 10

摘要

The four stereoisomers of Δ2-isoxazoline 2, a β-adrenergic receptor antagonist structurally related to Falintolol 1, were prepared by an enzyme-catalyzed kinetic resolution of the unsaturated secondary alcohol (±)-7 followed by its cycloaddition to pyruvonitrile oxide. Through this strategy, diastereomeric aminoalcohols (+)-2a/(−)-2b and (−)-2a/(+)-2b were obtained in 99 and 92% enantiomeric excess, respectively. The absolute configuration to ...