Phosphodiesterase 4 inhibitors

   
   

PDE4 inhibition is achieved by novel compounds, e.g., N-substituted aniline and diphenylamine analogs. The compounds of the present invention are of Formula I: ##STR1## wherein R.sup.1, R.sup.2 , R.sup.3 and R.sup.4 are as defined herein.

PDE4 de remming wordt bereikt door nieuwe samenstellingen, b.v., N-substituted aniline en difenylamineanalogons. De samenstellingen van de onderhavige uitvinding zijn van Formule I: ## STR1 ## waarin R.sup.1, R.sup.2, R.sup.3 en R.sup.4 zoals hierin bepaald zijn.

 
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