877303-65-6Relevant articles and documents
PROCESS FOR PURIFICATION OF CILOSTAZOL
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Page/Page column 5-6, (2008/06/13)
The present invention provides a process for preparing high purity cilostazol. The process comprises: (a) adding crude cilostazol to an acid selected from the group consisting of oxalic acid, maleic acid, sulfuric acid, and a mixture thereof to form a cilostazol salt; and (b) recovering cilostazol through adding a base to the cilostazol salt.