Process to prepare (1-carboxymethyl)-pyrimidinone compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system

Reexamination Certificate

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C544S285000, C544S309000

Reexamination Certificate

active

10485972

ABSTRACT:
The invention relates to a process for the preparation of certain pyrimidinone compounds.

REFERENCES:
patent: WO 01/60805 (2001-08-01), None
Lempert et al., “rH-3, 1-Benzoxazin-4-one. I. Rearrangement of N-(2-carboxyphenyl)cyanamide and N-(2-carboxyphenyl)carbodiimides into 1,2-dihydro-2-imino-4H-3, 1-benzoxazin-4-one and 1,2,3,4-tetrahydroquinazoline-2, 4-dione”, Monatsh, 1964, 95(3), pp. 950-960.

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