Process for preparing oxcarbazepine

Organic compounds -- part of the class 532-570 series – Organic compounds – Unsubstituted hydrocarbyl chain between the ring and the -c-...

Reexamination Certificate

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Reexamination Certificate

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07858779

ABSTRACT:
Process for preparing oxcarbazepine according to the steps of chlorocarbonylating (a), ammonolysis (b), and deprotecting (c).The invention is characterized by the use of triphosgene as chlorocarbonylating agent in step a).

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