Montelukast amantadine salt

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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Details

C546S174000

Reexamination Certificate

active

07446116

ABSTRACT:
An amantadine salt of montelukast is useful in purification of montelukast or its salts and as a pharmaceutical active ingredient.

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“An Efficient Synthesis of LTD4Antagonist L-699,392” by A.O. King et al.,J. Org. Chem.1993, 58, pp. 3731-3735.

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