Patent ID: 7220764

Claim:
A pharmaceutical composition comprising a compound or salt of formula (VIII): and a pharmaceutically acceptable carrier, wherein X is sulfur; R 1 is cycloalkyl, or aryl, wherein each ring is optionally substituted with 1, 2, or 3 groups that are independently (C 1 –C 6 ) alkyl, halogen, haloalkyl, —CF 3 , —OCF 3 , —OH, C 1 –C 6 alkoxy, hydroxyalkyl, —CN, —CO 2 H, —SH, —S-alkyl, —NO 2 , or NR′R″, wherein R′ and R″ are independently H or (C 1 –C 6 ) alkyl; and R 2 is cycloalkyl, or aryl, wherein each ring is optionally substituted with 1, 2, or 3 groups that are independently (C 1 –C 6 ) alkyl, halogen, haloalkyl, —CF 3 , —OCF 3 , —OH, C 1 –C 6 alkoxy, hydroxyalkyl, —CN, —CO 2 H, —SH, —S-alkyl, —NO 2 , or NR′R″, wherein R′ and R″ are independently H or (C 1 –C 6 ) alkyl or R 2 is benzodioxolyl optionally substituted with 1 or 2 groups that are independently halogen, —CF 3 , —OCF 3 , —OH, C 1 –C 6 alkoxy, —CN, —CO 2 H, —SH, —NO 2 , or NR′R″, wherein R′ and R″ are independently H or (C 1 –C 6 ) alkyl.