PROCESS FOR THE PREPARATION OF CARVEDILOL VIA SILYL PROTECTION OF SUBSTITUTED AMINE
The invention provides new process for preparing Carvedilol by reaction of 4-(oxiran-2- yl-methoxy)-9H-carbazole and substituted silyl protected 2-(2-methoxy phenoxy)-ethylamine compound to give silyl protected Carvedilol intermediate. The silyl protected Carvedilol intermediate on desilylation gives Carvedilol. The invention also provides a novel substituted silyl protected 2-(2-methoxy phenoxy)-ethylamine as key intermediate for the preparation of Carvedilol.
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(2009/10/22)
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