Convenient process of manufacture for...

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters

Reexamination Certificate

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Reexamination Certificate

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06998502

ABSTRACT:
A process for the manufacture of α-Difluoromethylornithine, analogs and derivatives is described from ornithine hydrochloride or from Nδ-phthaloyl ornithine hydrochloride, conversion to an alkyl ester, conversion to solid derivatives through the formation of Schiff bases, subsequent halomethylation using suitable bases and hydrolysis.

REFERENCES:
patent: 4330559 (1982-05-01), Bey et al.

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