Method for the purification of Piribedil

Details Method for the purification of Piribedil Method for the purification of Piribedil

2007-07-10

2007-07-10

Rao, Deepak (Department: 1624)

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

Reexamination Certificate

active

10810799

ABSTRACT:
A method for purifying Piribedil includes mixing Piribedil solid having a purity of 98% by weight with water, boiling the mixture, adding slowly 95% ethanol to the boiling mixture to form a clear liquid, filtering the hot clear liquid, cooling the filtrate to obtain a white crystal having a purity of 99.8% by weight of Piribedil.

REFERENCES:
patent: 3299067 (1967-01-01), Laubie et al.
patent: 167397 (1995-08-01), None
English Translation of the document PL 167397 published Aug. 1995.

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