Several omega -bromoacetophenone derivatives 6a-f were reduced to (R)-(-)-2-bromo-1-(phenyl/substituted phenyl) ethanol derivatives 7a-f with whole cell biocatalysts in good yields. The enantiomeric excesses were increased to 95% using an anionic surfactant under an inert atmosphere in an aqueous medium. (C) 2000 Elsevier Science Ltd. All rights reserved.
A convenient stereoselective synthesis of (R)-(−)-denopamine and (R)-(−)-salmeterol
作者:Jonali Goswami、Rajiv L. Bezbaruah、Amrit Goswami、Naleen Borthakur
DOI:10.1016/s0957-4166(02)00010-1
日期:2002.1
β-Adrenoreceptor agonists (R)-(−)-denopamine (R)-1 and (R)-(−)-salmeterol (R)-2 have been prepared in good overall yield and high enantioselectivity through a biotransformative pathway.