2-(4-Hydroxyphenyl)benzothiazole dicarboxylate ester TACN chelators for ⁶⁴Cu PET imaging in Alzheimer's disease.

ABSTRACT: Herein we report a new series of bifunctional chelators (BFCs) with high affinity for amyloid β aggregates, strong binding affinity towards Cu(II), and favorable lipophilicity for potential blood-brain barrier (BBB) penetration. The alkyl carboxylate ester pendant arms show high binding affinity towards Cu(II). The BFCs form stable ⁶⁴Cu-radiolabeled complexes and exhibit favorable partition coefficient (log D) values of 0.75-0.95. Among the five compounds tested, 64Cu-YW-1 and 64Cu-YW-13 complexes exhibit significant staining of amyloid plaques in ex vivo autoradiography studies.

SUBMITTER: Wang Y 

PROVIDER: S-EPMC8969080 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature