New 6-amino- or 6-hydrazino-sulphonyl-3-quinolynyl- phosphonic acid compounds, a process for their preparation and pharmaceutical compositions containing them

摘要

The invention relates to a compound of formula (I):wherein:R1 represents halogen or a group CF3,R2 represents hydrogen or alkyl or cycloalkyl,R3 is as defined in the description,R4 and R5 represent hydrogen or alkyl, cycloalkyl, aryl or arylalkyl a groupMedicaments.