DIVI'S LABORATORIES LTD.
DIVI'S LABORATORIES LTD. Patent applications | ||
Patent application number | Title | Published |
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20110275828 | PROCESS FOR THE PREPARATION OF IRBESARTAN - The present invention relates to a process for the preparation of 2-butyl-3-[[2′-(1H-tetrazol-5-yl)[1,1′-biphenyl]-4-yl]-1,3-diazaspiro[4,4]non-1-en-4-one by reaction of the corresponding nitrile with sodium azide and piperazine or its acid salt. | 11-10-2011 |