The invention relates to the novel products of formula (I):with R1 representing alkyl, cycloalkyl or cycloalkylalkyl; Rb representing a hydrogen atom or a fluorine atom W representing H; alkyl, cycloalkyl, heterocycloalkyl or COR with R representing cycloalkyl, heterocycloalkyl, alkyl; alkoxy, -O-heterocycloalkyl; or NHR2 with R2 representing H, cycloalkyl, heterocycloalkyl or alkyl; all optionally substituted; these products being in any isomer form, and the salts thereof, as medicaments, especially as MET inhibitors.本發明係關於新穎式(I)產物:其中R1表示烷基、環烷基或環烷基烷基;Rb表示氫原子或氟原子;W表示H;烷基、環烷基、雜環烷基或COR,其中R表示環烷基、雜環烷基、烷基;烷氧基、-O-雜環烷基;或NHR2,其中R2表示H、環烷基、雜環烷基或烷基;均視情況經取代;此等產物為任何異構體形式,及其鹽,其作為藥物,尤其作為MET抑制劑。