Patent ID: 8461154

Claim:
A compound of Formula 1: or a pharmaceutically acceptable salt, isomer, racemate, diastereomeric mixture thereof, wherein: A is —(CH 2 ) 4 — or —O—(CH 2 ) 4 —; B is S; R 1 and R 2 are independently alkyl, alkoxy, or halogen; and R 3 , R 4 , R 6 , R 7 , and R 8 are independently hydrogen, alkyl, alkoxy, or halogen, wherein R 1 , R 2 , R 3 , R 4 , R 6 , R 7 and R 8 and A are optionally substituted with isotopes selected from the group consising of 2 H (deuterium), 3 H (tritium), 13 C, 36 Cl, 18 F, 17 O, and 18 O.