METHOD OF PRODUCING OPTICALLY ACTIVE TRANS-1,2-DIAMINOCYCLOHEXANE
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United States of America Patent
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Issued Date -
Jan 21, 2016
app pub date -
Mar 13, 2014
filing date -
Mar 19, 2013
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Abstract
A method produces optically active trans-1,2-diaminocyclohexane, in which a crystal of optically active trans-1,2-diaminocyclohexane is obtained by crystallization from a solution of optically active trans-1,2-diaminocyclohexane. Optically active trans-1,2-diaminocyclohexane with high purity is obtained in a favorable yield from a solution of optically active trans-1,2-diaminocyclohexane. The optically active trans-1,2-diaminocyclohexane with high purity is useful as a raw material for a large number of medicines.
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