Purification process
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United States of America Patent
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Jul 23, 2002
Grant Date -
N/A
app pub date -
Aug 15, 2000
filing date -
Aug 15, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Object of the invention is a process for the chromatographic purification of cyclosporin A from a crude product containing cyclosporin complex by using a column filled with silica gel and by the application of multistep chromatography with a column filled with normal phase silica gel and by a solvent mixture containing toluene as the major component.
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