PROCESS FOR THE PREPARATION OF LINAGLIPTIN
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United States of America Patent
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Issued Date -
Jun 28, 2012
app pub date -
Dec 14, 2011
filing date -
Dec 23, 2010
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Abandoned
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Abstract
The present invention relates to processes for the preparation of 8-(3R)-3-aminopiperidinyl)-7-butyn-2-yl-3 -methyl-1-(4-methyl-quinazolin-2-ylmethyl)-3,7-dihydropurine-2,6-dione and novel intermediates useful in its synthesis.
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