Inhibitors of (alpha-v)(beta-6) integrin

A compound of formula (I):

• A-B—C (I)
• wherein:
• A is
• B is alkylene-N(R)C(O)—, -alkylene-(heterocyclyl)-C(O)—, alkylene-C(O)N(R)—, or heterocyclyl-C(O)—;
• C is
• wherein
• each n′ is 0, 1 or 2;
• R2 is H, alkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, cycloalkyl, -alkylene-alkoxy, alkylene-aryl, or heterocycloalkyl;
• R3, is H, halide, CF3, alkyl, alkylene-alkoxy, aryl, hydroxyl, or alkoxy;
• R6 is H, halide, CF3, alkyl, alkylene-alkoxy, aryl, hydroxyl, or alkoxy;
• and
• R7 is H, halide, CF3, alkyl, alkylene-alkoxy, aryl, hydroxyl, or alkoxy;
• R is H, alkyl, or aryl;
• each R1 is independently H, alkyl, halide, alkoxy, CF3, OH, alkylene-OH, NO2, —N(H)R, or NH2;
• provided each instance of R1 and R2 are not all simultaneously H.