Patent ID: 6933290

Claim:
A compound of the formula I wherein R 1 is unsubstituted or substituted aryl; arylalkylcarbonyl, wherein the aryl moiety is unsubstituted or substituted; unsubstituted or substituted heterocyclyl; or heterocyclylalkylcarbonyl, wherein the heterocyclyl moiety is unsubstituted or substituted; R 2 is unsubstituted or substituted aryl or unsubstituted or substituted heteroaryl; R 3 is hydrogen, unsubstituted or substituted aryl or alkyl which is unsubstituted or substituted by unsubstituted or substituted cycloalkyl, unsubstituted or substituted aryl, or unsubstituted or substituted heteroaryl comprising at least one nitrogen atom; R 4 is a moiety of the formula IA, wherein A 1 and A 2 are hydroxy or substituted hydroxy, or together with the binding boron atom and the two binding oxygen atoms form a ring of the formula IA*, wherein W is alkylene, substituted alkylene, unsubstituted or substituted cycloalkylene, unsubstituted or substituted bicycloalkylene or unsubstituted or substituted tricycloalkylene; and R 5 is unsubstituted or substituted alkyl, unsubstituted or substituted aryl, unsubstituted or substituted heterocyclyl, or unsubstituted or substituted cycloalkyl; or a salt thereof.