Crystallisation of levibupivacaine and analogues thereof
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United States of America Patent
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Nov 30, 1999
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N/A
app pub date -
Apr 25, 1997
filing date -
Oct 25, 1994
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Abstract
Levobupivacaine or an analogue thereof is prepared by reaction with a tartaric acid resolving agent in a solvent, in the presence of water and/or less 0.5 equivalents of the resolving agent.
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