The invention encompasses the novel compound of Formula I useful in the treatment of cyclooxygenase-2 mediated diseases. ##STR1## The invention also encompasses certain pharmaceutical compositions for treatment of cyclooxygenase-2 mediated diseases comprising compounds of Formula I.

L'invenzione comprende il residuo del romanzo della formula I utile nel trattamento delle malattie mediate cyclooxygenase-2. ## del ## STR1 L'invenzione inoltre comprende determinate composizioni farmaceutiche per il trattamento delle malattie mediate cyclooxygenase-2 che contengono i residui la formula I.