Patent ID: 8809338

Claim:
A compound of formula (la) wherein V is a COOH group; W is a guanidino group or an isostere chosen from the group consisting of where M=NH; L=H, cycloalkyl, aryl optionally substituted, NH 2 , OH, SH, tyrosine, tyramine, and s=0-8; R 9 ═H, NH 2 , CH 3 , CF 3 ; V—Y— is chosen in the group consisting of V—(CH 2 )p-CH(R 5 )—N(R 4 )—(CH 2 ) m —, V—(CH 2 )p-CH(R 5 )—N(R 4 )—CO—(CH 2 ) m —, wherein m=1,2,3; p=0,1,2; R 4 ═H, an alkyl of C 1 -C 4 , phenyl optionally substituted with one selected from the group consisting of an alkyl of C 1 -C 4 , a halo group, a hydroxyl group, and a combination thereof, SO 2 -phenyl optionally substituted with one selected from the group consisting of an alkyl of C 1 -C 4 , a halo group, a hydroxyl group, and a combination thereof; R 5 ═H, amino acid side chain, or is a ring structure chosen from the group consisting of said ring structure being optionally substituted with one selected from the group consisting of an alkyl of C 1 -C 4 , a halo group, a hydroxyl group, and a combination thereof; and W—X— is chosen from the group consisting of W—(CH 2 )n-, where n=1,2,3; including all the possible variations of the stereogenic centers, pharmaceutically acceptable salts, and including the possible presence of one or more radioisotopes.