Angiogenesis, tumor growth, and metalloproteinase 2 (MMP2) interaction with integrin-αvβ3 are inhibited by an inhibitor compound of formula: wherein G1 and G2 are each independently —NH—C(O)—O—(CH2)v—(C6H4)—X3 ; Y1 and Y2 are each independently —OH or C1-C4 alkoxy; X1 and X2 are each independently halo or C1-C4 alkoxy; X3 is fluoro, nitro, C1-C4 alkyl, C1-C4 alkoxy, or C1-C4 perfluoroalkyl; Z is —C≡C—, —C6H4—, cis-CH═CH—, trans-CH═CH—, cis-CH2—CH═CH—CH2—, trans-CH2—CH═CH—CH2—, 1,4-naphthyl, cis-1,3-cyclohexyl, trans-1,3-cyclohexyl, cis-1,4-cyclohexyl, or trans-1,4-cyclohexyl; A is H or a covalent bond; m and n are each 1; t is an integer having a value of 0 or 1; p and r are each 2, and v is 1; with the proviso that when A is H, t is 0, and when A is a covalent bond, t is 1.