PROCESS FOR PRODUCTION OF PHTHALAZINEACETIC ACID ESTER DERIVATIVES

PROCESS FOR PRODUCTION OF PHTHALAZINEACETIC ACID ESTER DERIVATIVES

This invention relates to a process for the production of phthalazineacetic acid ester derivatives of the formula wherein R is (C1-C4)alkyl. This invention also relates to the novel compound 1-hydrazino-1,2,3,4-tetrahydro-4-oxo-phthalazineacetic acid of the formula which is an intermediate formed in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ROBERT JOHN SYSKO, JR, TERRY GENE SINAY
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Beschreibung
Zusammenfassung:This invention relates to a process for the production of phthalazineacetic acid ester derivatives of the formula wherein R is (C1-C4)alkyl. This invention also relates to the novel compound 1-hydrazino-1,2,3,4-tetrahydro-4-oxo-phthalazineacetic acid of the formula which is an intermediate formed in the process of this invention and which is useful for the production of phthalazineacetic acid ester derivatives of formula IV. The compounds of formula IV are useful for the preparation of certain heterocyclic oxophthalazinyl acetic acids and esters thereof.