Patent ID: 7476681

Claim:
A compound represented by the structural formula: wherein: X is CH; Z is O, NH or N(CH 3 ); R 1 and R 2 are the same or different, each being independently selected from the group consisting of phenyl, pyridyl, phenyl-alkyl- and pyridyl-alkyl-, wherein each of said phenyl, pyridyl, phenyl-alkyl- and pyridyl-alkyl- can be unsubstituted or optionally independently substituted with one or more moieties which can be the same or different, each moiety being independently selected from the group consisting of halogen, alkyl, CF 3 , CN, —OCF 3 , —OH, —OCH 3 , —C(O)OH and —C(O)CH 3 , R 3 is H, —OH, —OCH 3 or —OCF 3 ; R 4 is selected from the group consisting of H, alkyl, phenyl, phenylalkyl, pyridyl, pyridylalkyl and piperidyl; m is a number from 0 to 4, and when m is more than 1, the R 4 groups can be the same or different and are independently selected; and R 5 is —C(O)OH, —C(O)CH 3 , —C(O)NH 2 , —S(O 2 )OH, —S(O 2 )OCH 3 or —S(O 2 )NH 2 .