Sulfoxide-Mediated Asymmetric Synthesis of Glycosidase Inhibitor Precursors
摘要:
The highly diastereoselective DIBALH and DIBALH/ZnBr2 reduction of enantiomerically pure (5S,(S)S)-3-ethoxy-5-(p-tolylsulfinyl)cyclopentenone (9) is used as a key step to the synthesis of oxazolidinone 2, a precursor of glycosidase inhibitor mannostatin. Compound 9 was obtained from 3-ethoxycyclopentenone by direct sulfinylation with (S)-N-benzyl-N-(p-tolylsulfinyl)propionamide.
Sulfoxide-Mediated Asymmetric Synthesis of Glycosidase Inhibitor Precursors
摘要:
The highly diastereoselective DIBALH and DIBALH/ZnBr2 reduction of enantiomerically pure (5S,(S)S)-3-ethoxy-5-(p-tolylsulfinyl)cyclopentenone (9) is used as a key step to the synthesis of oxazolidinone 2, a precursor of glycosidase inhibitor mannostatin. Compound 9 was obtained from 3-ethoxycyclopentenone by direct sulfinylation with (S)-N-benzyl-N-(p-tolylsulfinyl)propionamide.