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EP1904448A1 PURIFICATION OF MONTELUKAST 有权
清洁孟鲁司特

PURIFICATION OF MONTELUKAST
摘要:
The present invention provides methods of purifying montelukast, a new isolated impurity of montelukast of formula I, method for its isolation, and method of using montelukast impurity as a reference marker and a reference standard.
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