Patent ID: 7378532

Claim:
A compound of the following formula: wherein A is in which n is 0, 1, 2, or 3; Ar 1 is benzene, thiophene, or furan; Ar 2 is furyl; Ar 3 is phenyl; R 1 and R 2 are independently hydrogen, halogen, or —(CH 2 ) m OR e ; R 3 is H or alkyl; R 4 is (CR a R b ) p X(CR c R d ) g Y, R 5 and R 6 are independently hydrogen, halogen, or alkyl, or R 5 and R 6 together form O(CH 2 ) m O—; X is —O—, —S—, —NR a ′—, —O—C(O)—, or —C(O)—O—; Y is —C(O)OR c ′, —NR c ′R d ′, —C(O)NR c ′R d ′, —SO 3 R c ′, —SO 2 NR c ′R d ′, —SONR c ′R d ′, or —P(O)(OR c ′)(OR d ′); R a , R b , R c , and R d are independently H, halogen, nitro, cyano, alkyl, or aryl; R e is H, alkyl, or halogen; R a ′, R c ′, and R d ′ are independently H, alkyl, or aryl; m is 0, 1, 2, 3, 4, 5, or 6; and p and q are independently 1, 2, 3, 4, 5, or 6; or a salt thereof.