[Psychopharmacological study of two 3-arylsulfonyl 4-hydroxy-coumarines]

The pharmacological study of 3-(4-chlorophenylsulfonyl) 4-hydroxy-7-methoxy- coumarine and 3-(4-methylphenylsulfonyl) 4-hydroxy-7-methoxy-coumarine shows that these derivatives present low sedative effects on the central nervous system, particularly due to their actions upon temperature and motility, more accentuated for the chloro-substituted derivative.