• 1 January 1986
    • journal article
    • research article
    • Vol. 36-2 (8), 1157-1166
Abstract
The absolute configuration of (+)-celiprolol ([.alpha.]D = +6.3.degree. in CHCl3) was established by a 9-step synthesis via the (+) (R)-acetonide of (R)-glyceraldehyde. This result was confirmed by the Cupra-A CD-spectra of the isopropyl and hydroxy analogs. The enantiomeric purity was determined by NMR analysis of the diastereomeric amide esters obtained by reaction of celiprolol with 2 mol of .alpha.-methoxy-.alpha.-trifluormethylphenylacetic acid chloride (Mosher''s reagent).