Patent ID: 6946477

Claim:
A compound represented by A: wherein X represents NR; Z represents O, S or NR; R represents independently for each occurrence H, alkyl, aryl or heteroaryl; and two geminal instances of R taken together may represent O; R 1 represents H, alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl; R 2 represents independently for each occurrence H, alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl, or the two instances of R 2 taken together represent an aryl or heteroaryl moiety or a —CH 2 —, —CH 2 CH 2 —, —CH 2 CH 2 CH 2 —, or —CH 2 CH 2 CH 2 CH 2 —tether between the two nitrogens of the urea moiety; R 3 represents H, alkyl, fluoroalkyl, aryl, alkenyl, alkynyl, heteroaryl, aralkyl or heteroaralkyl; m is an integer in the range 1 to 4 inclusive; n is equal to 1; p is an integer in the range 0 to 3 inclusive; and the stereochemical configuration at any stereocenter of a compound represented by A may be R, S, or a mixture of these configurations.