Improved Process for the Preparation of Tamsulosin Hydrochloride
作者:A. Veera Reddy、S. Udaya Bhaskara Rao、G. Lakshmi Narasimha、P. K. Dubey
DOI:10.1080/00397910802519216
日期:2009.3.25
Ellman's sulfinamide reagent is used in asymmetric synthesis of Tamsulosin hydrochloride. The enantiomeric ratio achieved is 87:13. The crystallization of the same with dibenzoyl tartarate afforded the product 2 with 99.5% ee.