Purification process
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United States of America Patent
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Dec 12, 2006
Issued Date -
N/A
app pub date -
Jul 23, 2003
filing date -
Sep 11, 1996
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Abstract
This invention provides a process for purifying a cyclosporin, e.g. cyclosporin A, or a macrolide, to a high degree of purity on a large scale. In another aspect this invention provides a bulk quantity of cyclosporin A with an impurity level of less than about 0.7%, e.g. about 0.5%, and compositions thereof.
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