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US 2010/0160663 A1Published application
PROCESS FOR PREPARING INTERMEDIATES OF HMG-CoA REDUCTASE INHIBITORS
AssigneeTeva Pharmaceutical Industries Ltd.
InventorsVinod Kumar KANSAL, Brijnath P. CHAURASIA, Hitesh K. PATEL, Vrajlal GOTHALIA, Hiren GANDHI
Life of this patent
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Abstract
The present invention relates to intermediates of rosuvastatin and processes for the production thereof.
Claims16
1-36. (canceled)
A process for preparing a compound of formula 5a having the following structure:
- comprising combining the compound of formula 4a:
- with BOC anhydride (Di-tert-butyl dicarbonate) in the presence of a basic catalyst, wherein R1 is a C1-C5 alkyl group and Z is a hydroxy protecting group.
40-41. (canceled)
48-93. (canceled)
Dependencies are inferred from the claim text.