Patent ID: 7618968

Claim:
A compound or physiologically acceptable salt thereof, wherein the compound has the formula: wherein: Q is S, S—(CH 2 ) n or (CH 2 ) n —S, where n is 1-10; R 1 is H, OH, alkyl, alkoxy, Cl, F, Br, CR 3 where R 3 is Cl 3 , F 3 or Br 3 , NH 2 , NHR or NRR′ where R and R′ independently are alkyl; R 2 is OH, alkyl, alkoxy, Cl, F, Br or CR 3 where R 3 is Cl 3 , F 3 or Br 3 ; R 3 is alkyl, alkoxy, CCl 3 , C≡N or SR where R is alkyl; R 4 and R 5 are independently H, OH, alkyl, alkenyl, alkynyl, alkoxy, (CH 2 ) n —OR where R is H or alkyl and n is 1-10; Cl, F, Br, CR 3 where R 3 is Cl 3 , F 3 or Br 3 ; acyl, heterocycle, N + (═O)O − , C≡N, N 3 , SH, SR where R is alkyl; NH 2 , NHR or NRR′ where R and R′ independently are alkyl or are joined together to form a ring with the N, or R 4 and R 5 are taken together with the benzene ring to form a heterocycle or R 4 and R 5 are independently alkyl or alkenyl and joined together to form a ring with the two carbon atoms of the benzene ring to which R 4 and R 5 are attached; and with the proviso that R 4 and R 5 are not both H.