Patent ID: 8324258

Claim:
A compound represented by Formula I: including salts and esters thereof, wherein, R 1 is imidazolidonyl or a heteroaryl containing at least 1 ring nitrogen atom; R 2 and R 3 represent independently for each occurrence hydrogen or (C 1 -C 4 )alkyl; R 4 is R 5 represents independently for each occurrence hydrogen, halogen, alkyl, haloalkyl, aryl, heteroaryl, —NO 2 , —CN, —C(O)aryl, —C(O)heteroaryl, —C(O)N(R 2 )aryl, or —C(O)N(R 2 )heteroaryl; R 6 represents independently for each occurrence hydrogen, halogen, alkyl, haloalkyl, alkoxy, aryl, heteroaryl, —NO 2 , —CN, —SO 2 alkyl, or —SO 2 N(alkyl) 2 ; n is 0, 1, 2, 3, or 4; m represents independently for each occurrence 1 or 2; and the stereochemical configuration at a stereocenter in a compound represented by Formula I is R, S, or a mixture thereof.