Patent ID: 7939523

Claim:
A compound of formula (I): wherein each of R 1 , R 2 , and R 3 , independently, is H, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, heterocycloalkyl, heterocycloalkenyl, aryl, or heteroaryl; or R 1 and R 2 , together with the nitrogen atom to which they are bonded, are heterocycloalkyl; or R 2 and R 3 , together with the two nitrogen atoms to which they are bonded and the carbon atom bonded to both of the two nitrogen atoms, are heterocycloalkyl; A 1 is arylene or heteroarylene; A 2 is aryl or heteroaryl; each of X and Y, independently, is O, S, SO, SO 2 , N(R a ), C(R a R b ), C(O), C(O)O, C(O)NR a , NR a C(O)NR b , NR a C(S)NR b , NR a C(O)O, SO 2 NR a , alkylene, alkenylene, alkynylene, cycloalkylene, heterocycloalkylene, cycloalkenylene, heterocycloalkenylene, arylene, or heteroarylene, in which each of R a and R b , independently, is H, alkyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; Z is O or S; each of m and n, independently, is 0, 1, 2, 3, 4, or 5; p is 1, 2, or 3; x is 1; and y is 0 or 1.