Whole-cell yeast-mediated preparation of (R)-2-chloro-1-(3-nitrophenyl)ethanol as a synthetic precursor for (R)-phenylephrine
2013
Tokoshima, Daisuke | Hanaya, Kengo | Shoji, Mitsuru | Sugai, Takeshi
The incubated whole-cell biocatalyst of Pichia minuta JCM 3622 reduced 2-chloro-1-(3-nitrophenyl)ethanone to provide (R)-2-chloro-1-(3-nitrophenyl)ethanol with 99.2% ee in 87% isolated yield in the presence of Amberlite XAD-7 as a reservoir for the hydrophobic, crystalline and toxic substrate. The product was transformed to (R)-1-(3-hydroxyphenyl)-2-methylaminoethanol (phenylephrine, 1a), a selective α1-adrenergic receptor agonist, in 98.0% ee over five steps.
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