the effects of some old and new methylxanthines and 6-thioxanthines , i.e . theophylline ( th ) , caffeine ( caff ) , thiotheophyl line ( s-th ) , thiocaffeine ( s-caff ) , 8-phenyltheophylline ( 8-pt ) , 3-isobutyl-1-methyl-xanthine ( ibmx ) were compared at the level of adipose tissue on spontaneous and norepinephrine-induced lipolysis as well as on fat cell phosphodiesterases .
C0039771
th
C0000096
3-isobutyl-1-methyl-xanthine