This Hair bright is the Which being subjected on the indole derivatives or its Medical Drug of the new Ying of formula (I) under having Off to have:R1 As Halogen elements or alkyl in formula, R2 As Hydrogen, Huo Halogen elements, Ar As phenyl or thienyl, Ke The Halogen elements, alkyl, alkoxy, alkylthio group etc. replace.本發明乃有關具下式(I)之新穎之吲哚衍生物或其醫藥上可接受之鹽:式中R1為鹵素、或烷基,R2為氫、或鹵素,Ar為苯基、或噻吩基,其可經鹵素、烷基、烷氧基、烷硫基等取代。