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- W2348097913 abstract "Synthesis of DO3A derivatives(H3L) modified by linear alkyl groups, N-hexyl-DO3A(2), N-decyl-DO3A(3), N-hexadecyl-DO3A(4), and their Gd(Ⅲ) chelates(GdL) is described. The protonation constants of compounds 2, 3 and 4, the stability constants and the water proton relaxivity of GdL were determined. The first protonation constants(lg KH1) of compounds 2, 3 and 4 were respectively 10.72, 10.68 and 10.52, the stability constants of the corresponing GdL chelates were respectively 20.50, 19.60 and 19.25, and the water proton relaxivitives(r1) of the corresponding GdL chelates were respectively 4.88, 4.96 and 5.12 L/(mmol·S). The results obtained showed that the basicities of the ligands were all slightly altered, but the ligands still maintained strong chelating property and the water proton relaxivity of the parent DO3A after the introduction of a linear alkyl group at the cyclen backbone of DO3A." @default.
- W2348097913 created "2016-06-24" @default.
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- W2348097913 date "2008-01-01" @default.
- W2348097913 modified "2023-09-28" @default.
- W2348097913 title "Synthesis,Stability and Relaxivity of N-Alkyl-DO3A and Their Gd(III) Chelates" @default.
- W2348097913 hasPublicationYear "2008" @default.
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