Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Meihua Xie0
Date of Patent
February 19, 2008
Patent Application Number
11644328
Date Filed
December 22, 2006
Patent Primary Examiner
Patent abstract
The present invention relates to a process for preparing Tamsulosin, an anti-benign prostatic hyperplasia drug, which comprises converting o-ethoxyphenoxyethanol to a corresponding sulfonate, and reacting the sulfonate with (R)-(−)-5-(2-aminopropyl)-2-methoxybenzenesulfonamide by condensation to produce Tamsulosin.
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