A facile stereospecific synthesis of the [2H6]-isopropyl-labelled metoprolol enantiomers from (2r)- and (2S)-glycidyl 3-nitrobenzenesulfonate

Autor: Satya S. Murthy, Wendel L. Nelson
Rok vydání: 1990
Předmět:
Zdroj: Journal of Labelled Compounds and Radiopharmaceuticals. 28:1411-1416
ISSN: 0362-4803
DOI: 10.1002/jlcr.2580281208
Popis: Enantiomers of metoprolol containing six deuterium atoms in the isopropyl methyl groups were prepared in two steps from the sodium salt of 4-(2-methoxyethyl)phenol (3) and the commercially available (2R)- and (2S)-glycidyl 3-nitrobenzenesulfonates [(2R)-2 and (2S)-2]. The resulting (2R)- and (2S)-epoxides were opened using [2H6]-isopropylamine. The enantiomeric excesses were 93 and 95% for the deuterated (2R)- and (2S)-enantiomers of metoprolol [(2R)-1 and (2S)-1], respectively, as determined by chiral column HPLC.
Databáze: OpenAIRE