Downer JB, McCarthy TJ, Edwards WB, Anderson CJ, Welch MJ. Reactivity of p-[18F]fluorophenacyl bromide for radiolabeling of proteins and peptides.
Appl Radiat Isot 1997;
48:907-16. [PMID:
9376825 DOI:
10.1016/s0969-8043(97)00012-2]
[Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Radiolabeling of the somatostatin analog octreotide was attempted with p-[18F]fluorophenacyl bromide ([18F]FPB). Following these unsuccessful trials, the reactivity of FPB was studied using benzyl mercaptan, phenyl acetic acid, benzyl alcohol, and benzyl amine as model compounds for amino acid functional groups. Structure and purity of products, relative reactivity of FPB in competition reactions, and radiolabeling experiments are described. In addition, improvement in labeling efficiency of HSA using [18F]FPB was achieved by pretreatment with 2-iminothiolane.
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