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Synthesis and composition of amino acid linking groups conjugated to compounds used for the targeted imaging of tumors

Grant US12576165B2 Kind: B2 Mar 17, 2026

Assignee

Purdue Research Foundation

Inventors

Philip Stewart Low, Sumith A. Kularatne, Sakkarapalayam M. Mahalingam

Abstract

The present disclosure relates to compounds that are useful as near-infrared fluorescence probes, wherein the compounds include i) a pteroyl ligand that binds to a target receptor protein, ii) a dye molecule, and iii) a linker molecule that comprises an amino acid or derivative thereof. The disclosure further describes methods and compositions for incorporating the compounds as used for the targeted imaging of tumors. Conjugation of the amino acid linking groups increase specificity and detection of the compound. Methods and compositions for use thereof in diagnostic imaging are contemplated.

CPC Classifications

A61K 49/0052 A61K 49/0032 A61B 5/0071 G01N 33/57411 G01N 33/57415 G01N 33/57423 G01N 33/57426 G01N 33/57449 G01N 33/582

Filing Date

2025-09-25

Application No.

19340137

Claims

1