【摘 要】
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A novel ligand of DTPA-dihydropyridine derivative was synthesized by reaction of DTPA-dianhydride with 4-aniline-1,4-dihydropyridine. Its complexes of gadoliniu
【出 处】
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Science in China(Series B:Chemistry)
论文部分内容阅读
A novel ligand of DTPA-dihydropyridine derivative was synthesized by reaction of DTPA-dianhydride with 4-aniline-1,4-dihydropyridine. Its complexes of gadolinium, manganese and iron were prepared. Their spin-lattice relaxivities (T1) were investigated. The results show that the NMR T1 relaxivitives (R1) for complexes of Fe(Ⅲ), Mn(Ⅱ) are less than that of Gd(Ⅲ) complex, which has a high relaxivity (R1) on the surrounding water protons, indicating that the Gd(Ⅲ) complex possesses the precondition to be contrast agents for magnetic resonance imaging.
A novel ligand of DTPA-dihydropyridine derivative was synthesized by reaction of DTPA-dianhydride with 4-aniline-1,4-dihydropyridine. Its complexes of gadolinium, manganese and iron were prepared. Their spin-lattice relaxivities (T1) were investigated. results show that the NMR T1 relaxivities (R1) for complexes of Fe (Ⅲ), Mn (Ⅱ) are less than that of Gd (Ⅲ) complex, which has a high relaxivity (R1) on the surrounding water protons, indicating that the Gd (Ⅲ) complex possesses the precondition to be contrast agents for magnetic resonance imaging.
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