Quinazoline derivatives

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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Details

C514S234500, C514S266200, C514S266400, C544S116000, C544S284000, C544S287000, C544S293000

Reexamination Certificate

active

09806836

ABSTRACT:
The invention relates to the use of compounds of the formula I:wherein: ring C is a 5-6 membered heterocyclic moiety; Z is —O—, —S—, or —CH2—; R1is hydrogen, C1-4alkyl, C1-4alkoxymethyl, di(C1-4)alkoxy)methyl, C1-4alkanoyl, trifluoromethyl, cyano, amino, C2-5alkenyl, C2-5alkynyl, carboxy, C3-7cycloalkyl, C3-7-cycloalkylC1-3alkyl, or an optionally substituted group selected from phenyl, benzyl, phenylC2-4alkyl and a 5-6 membered heterocyclic group; n is an integer from 0 to 5; m is an integer from 0 to 3; R2represents hydrogen, hydroxy, halgeno, cyano, nitro, trifluoromethyl, C1-3alkyl, C1-3alkoxy, C1-3alkylsulphanyl, —NR3R4(wherein R3and R4, which may be the same or different, each represents hydrogen or C1-3alkyl), or R5X1— (wherein X1represents a direct bond, —CH2—, or a heteroatom linker group and R5is an alkyl, alkenyl or alkynyl chain optionally substituted by for example hydroxy, amino, nitro, alkyl, cycloalkyl, alkoxyalkyl, or an optionally substituted group selected from pyridone, phenyl and a heterocyclic ring, which alkyl, alkenyl or alkynyl chain may have a heteroatom linker group, or R5is an optionally substituted group selected from pyridone, phenyl and a heterocyclic ring, and salts thereof, in the manufacture of a medicament for use in the production of an antiangiogenic and/or vascular permeability reducing effect in warm-blooded animals, processes for the preparation of such compounds, pharmaceutical compositions containing a compound of formula I or a pharmaceutically acceptable salt thereof as active ingredient and compounds of formula I. The compounds of formula I and the pharmaceutically acceptable salts thereof inhibit the effects of VEGF, a property of value in the treatment of a number of disease states including cancer and rheumatoid arthritis.

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