C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/241.6
C07D 403/04 (2006.01)
Patent
CA 1263652
ABSTRACT OF THE DISCLOSURE The present invention provides substituted benzyl- phthalazinone derivatives of the formula Image I where R is a benzyl group, a phenylethyl group, a methoxy- ethyl group or an allyl group or a physiologically compatible acid addition salt thereof. The compounds are useful. The compounds of the invention are antiallergic and asthma pro- phlactically active.
490641
Engel Jurgen
Scheffler Gerhard
Asta-Werke Aktiengesellschaft Chemische Fabrik
Marks & Clerk
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