Patent ID: 8173831

Claim:
A compound of Formula I, or a pharmaceutically acceptable salt, enantiomer, or stereoisomer thereof, wherein: R 1 , R 2 , R 3 , and R 4 are each independently selected from the group consisting of H, Cl, F, CN, —NH(C 1 -C 3 alkyl), —N(C 1 -C 3 alkyl) 2 , —NH(C(O)C 1 -C 3 alkyl), —N(C(O)C 1 -C 3 alkyl) 2 , —C(O)H, —C(O)C 1 -C 3 alkyl, —C(O)OC 1 -C 3 alkyl, —C(O)NH 2 , —C(O)NH(C 1 -C 3 alkyl), —C(O)N(C 1 -C 3 alkyl) 2 , —O—C 1 -C 3 alkyl, —S(O)C 1 -C 3 alkyl, and —S(O) 2 C 1 -C 3 alkyl; W 1 is NH and W 2 is selected from null, O, or NH; - - - - - represents an optional bond that when present requires that Q is null; a and c are each independently H, CH 3 , —OCH 3 , —OCH 2 CH 3 , or C(O)OH; b is H, CH 3 , C(O)OH, or O—Z; d is H or C(O)OH; each n, o, p, and q is independently 0 or 1; each Z is H or with the proviso that there is at least one in the compound; each r is independently 2 or 3; each s is independently 5 or 6; each t is independently 0 or 1; Q is null, C(O)CH 3 , Z, e is H or any one of the side chains of the naturally occurring amino acids; W 3 is null, —O—, or —N(R)—; R is H or C 1 -C 3 alkyl; and T is H, C(O)CH 3 , or Z.