N-substituted derivatives of 5-oxyiminobarbituric acid

Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...

Reexamination Certificate

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C544S301000, C544S302000, C544S303000, C544S304000, C544S305000, C514S274000

Reexamination Certificate

active

07074925

ABSTRACT:
N-substituted derivatives of 5-oximinobarbituric add of the general formulawhere X is sulfur; R1is selected from the group consisting of saturated or unsaturated alkyl, cycloalkyl, aryl and arylalkyl; and R2is selected from the group consisting of hydrogen, saturated or unsaturated alkyl, cycloalkyl, aryl and arylalkyl possessing a biological activity.

REFERENCES:
patent: 5456904 (1995-10-01), Bush
patent: 96 40 856 (1996-12-01), None

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