A compound represented by structural formula: or a pharmaceutiacally acceptable salt thereof, wherein: A is selected from the group consisting of V is hydrogen, halo or -OR 1b; R 1, R 1a and R 1b are independently selected from the group consisting of hydrogen, C 1-6 alkyl, C 6-10 aryl-C 1-4 alkyl, -C C 6-10 aryl and -C C 1-6 alkyl; R 2 and R 2a, for each occurrence, are independently selected from the group consisting of halo, hydroxy, C 1-6 alkyl, and C 1-6 alkoxy; R 3 is halo, hydroxy, C 1-6 alkyl, haloC 1-6 alkyl, C 3-10 cycloalkyl, C 1-6 alkoxy, or haloC 1-3 alkoxy; R 4 is selected from the group consisting of: R 5 is an amino acid sidechain which is a naturally occurring amino acid sidechain selected from the group consisting of the sidechain of glycine, alanine, cysteine, asparagine, glutamine, glutamic acid, arginine, aspartic acid, histidine, lysine, isoleucine, leucine, methionine, phenylalanine, proline, serine, threonine, tryptophane, tyrosine, and valine; or a non-standard amino acid sidechain selected from the group consisting of the sidechain of 3,5-dibromotyrosine, 3,5-diiodotyrosine, gem-dimethylglycine, hydroxylysine, α-aminobutyric acid, hydroxyproline, lanthionine, thyroxine, ornithine, and citrulline; R 6 is a C 1-6 alkyl, C 3-10 carbocyclyl, C 3-10 carbocyclyl-C 1-4 alkyl, 3- to 10-membered heterocyclyl, (3- to 10-membered heterocyclyl)-C 1-4 alkyl, C 6-10 aryl, C 6-10 aryl-C 1-4 alkyl, 5-to 10-membered heteroaryl, or (5- to 10-membered heteroaryl)-C 1-4 alkyl; R 7, for each occurrence, is independently hydrogen, C 1-6 alkyl, C 3-10 carbocyclyl, C 3-10 carbocyclyl-C 1-4 alkyl, 3- to 10-membered heterocyclyl, (3- to 10-membered heterocyclyl)-C 1-4 alkyl, C 6-10 aryl, C 6-10 aryl-C 1-4 alkyl, 5- to 10-membered heteroaryl, or (5-to 10-membered heteroaryl)-C 1-4 alkyl; n is 0, 1, 2, or 3; and q is 0, 1, or 2. A is selected from the group consisting of V is hydrogen, halo or -OR 1b; R 1, R 1a and R 1b are independently selected from the group consisting of hydrogen, C 1-6 alkyl, C 6-10 aryl-C 1-4 alkyl, -C C 6-10 aryl and -C C 1-6 alkyl; R 2 and R 2a, for each occurrence, are independently selected from the group consisting of halo, hydroxy, C 1-6 alkyl, and C 1-6 alkoxy; R 3 is halo, hydroxy, C 1-6 alkyl, haloC 1-6 alkyl, C 3-10 cycloalkyl, C 1-6 alkoxy, or haloC 1-3 alkoxy; R 4 is selected from the group consisting of: R 5 is an amino acid sidechain which is a naturally occurring amino acid sidechain selected from the group consisting of the sidechain of glycine, alanine, cysteine, asparagine, glutamine, glutamic acid, arginine, aspartic acid, histidine, lysine, isoleucine, leucine, methionine, phenylalanine, proline, serine, threonine, tryptophane, tyrosine, and valine; or a non-standard amino acid sidechain selected from the group consisting of the sidechain of 3,5-dibromotyrosine, 3,5-diiodotyrosine, gem-dimethylglycine, hydroxylysine, α-aminobutyric acid, hydroxyproline, lanthionine, thyroxine, ornithine, and citrulline; R 6 is a C 1-6 alkyl, C 3-10 carbocyclyl, C 3-10 carbocyclyl-C 1-4 alkyl, 3- to 10-membered heterocyclyl, (3- to 10-membered heterocyclyl)-C 1-4 alkyl, C 6-10 aryl, C 6-10 aryl-C 1-4 alkyl, 5-to 10-membered heteroaryl, or (5- to 10-membered heteroaryl)-C 1-4 alkyl; R 7, for each occurrence, is independently hydrogen, C 1-6 alkyl, C 3-10 carbocyclyl, C 3-10 carbocyclyl-C 1-4 alkyl, 3- to 10-membered heterocyclyl, (3- to 10-membered heterocyclyl)-C 1-4 alkyl, C 6-10 aryl, C 6-10 aryl-C 1-4 alkyl, 5- to 10-membered heteroaryl, or (5-to 10-membered heteroaryl)-C 1-4 alkyl; n is 0, 1, 2, or 3; and q is 0, 1, or 2.