Patent ID: 7812158

Claim:
A compound or a salt consisting of an anion and, wherein the compound or the cation of the salt is of the formula wherein R 1 and R 2 taken together with the carbon atoms to which they are attached form a pyridyl ring, said pyridyl ring may be unsubstituted or substituted with a lower alkyl group or an electron donating group; Y 1 is N; Q 1 is CR 16 ; R 16 is H or lower alkyl; R 14 is a positively charged electron withdrawing group, SO 2 R 17 , lower alkyl carbonyl, lower arylalkyl carbonyl, aryl carbonyl, lower alkyl aryl, or BLK 1 -AA 1 R 17 is aryl, aryl lower alkyl or lower alkyl; AA 1 is an amino acid or peptide less a hydrogen atom on the N-terminus and an OH on the C-terminus; BLK 1 is an amino protecting group, R 10 is OR 12 , lower alkyl, aryl, aryl lower alkyl, lower cycloalkyl, lower cycloalkyl lower alkyl, heterocyclic, heterocyclic lower alkyl, lower cycloalkenyl, or lower cycloalkenyl lower alkyl; R 11 is OR 13 , lower alkyl, aryl, aryl lower alkyl, lower cycloalkyl, lower cycloalkyl lower alkyl, heterocyclic, heterocyclic lower alkyl, lower cycloalkenyl or lower cycloalkenyl lower alkyl; and R 10 and R 11 may optionally be connected by a bridging group selected from the group consisting of O, S, NR 30 , or (CHR 30 ) m , wherein each R 30 is independently lower alkyl or hydrogen and m is 1-3; and R 12 and R 13 are independently lower alkyl, lower cycloalkyl, lower cycloalkyl lower alkyl, heterocyclic, heterocyclic lower alkyl, lower cycloalkenyl or lower cyclalkenyl lower alkyl; ring A 1 and ring B are independently an aromatic ring containing 6 to 14 ring carbon atoms or cycloalkenyl or cycloalkyl, each containing 5 to 14 ring carbon atoms, and R b1 , R c1 , R b2 , R c2 are independently hydrogen, lower alkyl or electron donating group; T is CHR 31 , O, S or NR 30 ; and R 31 is hydrogen or lower alkyl.