The present invention relates to a compound of the general formula(1) The compound of formula (1) is suitable for use m a method for treating adisorderrelating to the binding of a galectin, such as galectin-1 to a ligand in amammal, suchas a human. Furthermore, the present invention concerns a method for treatmentofa disorder relating to the binding of a galectin, such as galectin- 1 to aligand in amammal, such as a human.