The present invention relates to novel compounds which inhibit urokinase-plasminogen activator, have a high bioavailability and can be administered orally, and to their use as therapeutic active substances for the treatment of disorders associated with urokinase andor urokinase receptor, for example tumours and metastasis. The cleaning brush has bristles and a flexible insert rod extending from an end of the bristles. A pressure of a liquid substance in the feed chamber is increased such that vapor of the liquid substance is transported from the feed chamber to the permeate chamber. The charging dock is a channel with an opening on a sidewall of the keyboard and can store the rechargeable wireless peripheral therein so as to electrically couple the rechargeable wireless peripheral to the charger. Once a fault is detected, the location of the root cause of the fault may be identified by characterizing operating parameters of the control loop at the time of the fault.