Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2005-06-16
2010-06-29
Saeed, Kamal A (Department: 1626)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C548S241000
Reexamination Certificate
active
07745471
ABSTRACT:
Derivatives of 1,2-benzisoxazole-3-methanesulfonic acid, which are non-hygroscopic and non-hydrated and their use as intermediates from the preparation of zonisamide are disclosed. Further disclosed are processes of preparing zonisamide from these 1,2-benzisoxazole-3-methanesulfonic acid derivatives, processes of preparing exemplary 1,2-benzisoxazole-3-methanesulfonic acid derivatives and crystalline forms of exemplary 2-benzisoxazole-3-methanesulfonic acid derivatives. A novel process of preparing zonisamide is also disclosed.
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Arad Oded
Kaspi Joseph
Klopfer Eyal
Naddaka Vladimir
Saeed Shady
Bianchi Kristin
Chemagis Ltd.
Leydig , Voit & Mayer, Ltd.
Saeed Kamal A
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