DERIVATIVES OF UREA, THEIR PREPARATION AND MEDICAMENTS CONTAINING THEM

摘要

Compounds of the formula (I) in which R1 is an alkyl radical, R2 is a phenyl radical or a -(CH2)m-CO-R4 chain in which m is O, 1 or 2 and R4 is a hydroxy, alkoxy or amino radical, R3 is a hydrogen atom or an alkyl, alkoxy or alkylthio radical, n is O or 1, their preparation and the medicaments containing them.