发明公开
EP1737430A1 METHOD OF PREPARING LOW-CRYSTALLINITY OLTIPRAZ OR AMORPHOUS OLTIPRAZ 审中-公开
用于生产低结晶或无定形的奥替普拉奥替普拉

METHOD OF PREPARING LOW-CRYSTALLINITY OLTIPRAZ OR AMORPHOUS OLTIPRAZ
摘要:
Provided is a method of preparing low-crystallinity oltipraz or amorphous oltipraz. The method includes: obtaining a mixed solution containing oltipraz and a water-soluble polymer or a water-insoluble polymer in a solvent, the solvent being an organic solvent or purified water; and solid-dispersing the oltipraz in the polymer. In the solid-dispersing, the mixed solution may be spray dried using a spray dryer or granulated using a fluid bed granulator.
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