Applying Lipase Catalysis to Access the Enantiomers of Dorzolamide Intermediates
作者:Mihaela C. Turcu、Maria Rantapaju、Liisa T. Kanerva
DOI:10.1002/ejoc.200900672
日期:2009.11
resolution of three dorzolamideintermediates has been studied in the presence of Burkholderia cepacia lipase in organic solvents. All the stereoisomers of 6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-ol were prepared starting from the racemic cis-dihydrothiopyranol intermediate giving first the 4R,6S and 4S,6R enantiomers. Subsequent epimerization and purification of the trans enantiomers by enzymatic