The present invention relates to a compound of formula (I) wherein R1/R2 are independently from each other hydrogen or halogen L is a bond, -NH-, -C(O)NH-, -NHC(O)- or NHC(O)NH- R is hydrogen, lower alkyl, cycloalkyl, benzyl, phenyl or a five or six membered heteroaryl group, wherein phenyl and the heteroaryl groups are optionally substituted by one or two substituents, selected from halogen, lower alkyl, lower alkoxy, lower alkyl substituted by halogen, lower alkoxy substituted by halogen, cycloalkyl or di-lower alkyl amino or R is halogen if L is a bond. or to a pharmaceutically suitable acid addition salt thereof, to all racemic mixtures, all their corresponding enantiomers and/or optical isomers. The compounds of formulas (I) have a good affinity to the trace amine associated receptors (TAARs), especially for TAAR1 and may be used for the treatment of depression, anxiety disorders, bipolar disorder, attention deficit hyperactivity disorder (ADHD), stress-related disorders, psychotic disorders such as schizophrenia, neurological diseases such as Parkinsons disease, neurodegenerative disorders such as Alzheimers disease, epilepsy, migraine, hypertension, substance abuse and metabolic disorders such as eating disorders, diabetes, diabetic complications, obesity, dyslipidemia, disorders of energy consumption and assimilation, disorders and malfunction of body temperature homeostasis, disorders of sleep and circadian rhythm, and cardiovascular disorders.La presente invención se refiere a un compuesto de fórmula (I) en donde R1/R2 son independientemente uno de otro hidrógeno o halógeno L es un enlace, -NH-, -C(O)NH-, -NHC(O) - o NHC(O)NH- R es hidrógeno, alquilo inferior, cicloalquilo, bencilo, fenilo o un grupo heteroarilo de cinco o seis miembros, en donde los grupos fenilo y heteroarilo están opcionalmente sustituidos por uno o dos sustituyentes, seleccionados de halógeno, alquilo inferior, alcoxi inferior, alquilo inferior sustituido por halógeno, alcoxi inferior