Patent ID: 7511043

Claim:
A compound of the formula B 1 -L 1 -A 1 -L 2 -B 2 I or pharmaceutically acceptable salt thereof, wherein: A 1 is a member selected from the group consisting of cycloalkylene, cycloalkenylene, arylene, heteroarylene, heterocycloalkylene, and heterocycloalkenylene; L 1 and L 2 are each independently a member selected from the group consisting of â€”Oâ€”, â€”Sâ€”, â€”N(R 1 )â€”, â€”C(O)â€”, â€”C(O)N(R 1 )â€”, â€”O-alkylene-, â€”S-alkylene-, â€”N(R 1 )-alkylene, â€”C(O)-alkylene, â€”C(O)N(R 1 )-alkylene, and â€”C(O)â€”O-alkylene; B 1 and B 2 are each independently a member selected from the group consisting of cycloalkyl, cycloalkenyl, aryl, heteroaryl, heterocycloalkyl, and heterocycloalkenyl; and R 1 is a member selected from the group consisting of hydrogen, alkyl, heteroalkyl, cycloalkyl, heterocycloalkyl, cycloalkenyl, heterocycloalkenyl, aryl, heteroaryl, and arylalkyl.