Abstract: The present invention provides compounds suitable for intraoperative bioimaging. In particular, compounds are provided that are suitable for marking tumor tissue during surgery to facilitate complete removal of said tumor tissue. Corresponding methods for intraoperative bioimaging and methods for surgery comprising intraoperative bioimaging are also provided.

Abstract: Disclosed are compounds represented by the following general formula (I): Cyclo-(Arg-Gly-Asp-X1-X2-X3-X4-X5) (I) wherein the variables groups X1 to X5 have the following meanings X1: Leu, Ile, Nle, Val, Tyr, Phe; X2: D-amino acid such as D-Pro, N-Me-D-Phe; X3: Pro, N-Me-amino acid such as N-Me-Lys, N-Me-Lys(Ac); Pro-Rx3, N-Me-Lys-Rx4; X4: Gly, Ala, Ser, Thr; X5: Leu, Ala, Tyr, His, Ile, Nle, Val, Phe wherein Pro-Rx3 represents a proline residue that carries at the C-3, C-4 or C-5 carbon atom and preferably the C-4 carbon atom a functional group selected from —NH2, —OH, —NH—Ac, —NH-hexyne, and wherein Lys-Rx4 represents a lysine residue, wherein the ?-amino nitrogen atom carries a group of the formula -L4-R4, wherein L4 is selected from the group consisting of covalent bond, —C(O)—, and —C(O)—O—, . . .

Abstract: Disclosed are compounds represented by the following general formula (I): Cyclo-(Arg-Gly-Asp-X1-X2-X2-X4-X5) (I) wherein the variables groups X1 to X5 have the following meanings X1: Leu, Ile, Nle, Val, Tyr, Phe; X2: D-amino acid such as D-Pro, N-Me-D-Phe; X3: Pro, N-Me-amino acid such as N-Me-Lys, N-Me-Lys(Ac); Pro-Rx3, N-Me-Lys-Rx4; X4: Gly, Ala, Ser, Thr; X5: Leu, Ala, Tyr, His, Ile, Nle, Val, Phe wherein Pro-Rx3 represents a proline residue that carries at the C-3, C-4 or C-5 carbon atom and preferably the C-4 carbon atom a functional group selected from —NH2, —OH, —NH—Ac, —NH-hexyne, and wherein Lys-Rx4 represents a lysine residue, wherein the ?-amino nitrogen atom carries a group of the formula -L4-R4, wherein L4 is selected from the group consisting of covalent bond, —C(O)—, and —C(O)—O—, . . .