Compounds of the formula (I), in which M is a central building block selected from the group below in which Al, A2, K1 and K2 are as defined in the description, are novel effective tryptase inhibitors.
Rotaxane-structure-specific Pd-catalyzed rearrangement of propargyl or allyl urethane groups to oxazolidinone moieties proceeded efficiently. The conversion took place successively by the translation of the wheel along the axle, thus providing a novel macrocyclic catalytic system.