A PSMA-specific imaging agent comprising a compound according to formula I:
are described, wherein S1 is an organic spacer group having from 5 to 30 carbons, A is an amino acid forming a portion of a negatively charged peptide oligomer, n is from 3 to 6, S2 is an organic spacer group having from 5 to 15 carbons, and I is an imaging group, and pharmaceutically acceptable salts thereof. The PSMA-specific imaging agents can be used to image PSMA within a tissue region to guide the treatment of diseases such as prostate cancer.
描述了一种PSMA特异性成像剂,包括根据式I的化合物,其中S1是具有5到30个碳原子的有机间隔基团,A是形成带有负电荷的肽寡聚体一部分的
氨基酸,n为3到6,S2是具有5到15个碳原子的有机间隔基团,I是成像基团,以及其药学上可接受的盐。PSMA特异性成像剂可用于成像组织区域内的PSMA,以指导治疗前列腺癌等疾病。