Fisons Ltd.

Sidney C Burford

David N Hardern

Richard A Appleton

John Dixon

David J Wilkinson

There are described compounds of formula I, ##STR1## in which Ar.sub.1 and Ar.sub.2, which may be the same or different, each independently represent phenyl or pyridinyl, the phenyl or the pyridinyl each optionally being substituted by one or more of halogen; hydroxy; --COOR.sub.12 ; trihalomethyl; alkoxy C1 to 6; alkyl C1 to 6; --NR.sub.1 R.sub.2 ; alkoxy C1 to 6 substituted by --NR.sub.1 R.sub.2 or by phenyl; or alkyl C1 to 6 substituted by --NR.sub.1 R.sub.2 or by --COOR.sub.12 ;

4,5-dihydro pyrazole compounds

Pyrazoline compounds compositions and use

There are described compounds of formula I, ##STR1## in which either R.sub.2 represents hydrogen, alkyl or Ar.sub.2, and

Anti-inflammator 1,n-diarylpyrazol-3-amines

There are described compounds of formula I, ##STR1## in which R.sub.1 represents hydrogen, alkyl, alkanoyl or alkyl substituted by Ar.sub.1,

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Loughborough, United Kingdom

Sidney C Burford