This paper described the ~3H NMR determination of the positions and content of 24 tritium labeled aromatic and heterocyclic compounds prepared by catalytic tritiation derivatives, pyrrole, 1,2,4-triazole, thiazole, be...This paper described the ~3H NMR determination of the positions and content of 24 tritium labeled aromatic and heterocyclic compounds prepared by catalytic tritiation derivatives, pyrrole, 1,2,4-triazole, thiazole, benzothiazole, purine and derivatives, indole, indanol, piperidine and derivative, diphenylamine, N- phenylanthranilic acid, 8- OH- quinoline, naphthol, diphenylether have been tritiated by catalytic exchange method using tritiated water and platinum catalyst (from the dioxide and sodium borohydride), and the pattern of labelling has been assigned by ~3H NMR spectroscopy. The results show that this exchange process can give general labelling compounds at various time and temperatures. For 4-Br-diphenylether, Raney nickel was used instead of Pt as a catalyst.展开更多
An efficient procedure for the synthesis of agmatine labelled with tritium and deuterium is reported. The final tritiated product 4 was obtained with a specific activity of 40 Ci/mmol and a radiochemical purity of 95%.
In this study the compatible chemical and biological investigations of several N-phenylquinolinium derivatives have been carried out in order to find the most perspective quinolinium structures for the nuclear-chemica...In this study the compatible chemical and biological investigations of several N-phenylquinolinium derivatives have been carried out in order to find the most perspective quinolinium structures for the nuclear-chemical synthesis of tritium labeled biomarkers.展开更多
14 C -利多卡因由14 C -二乙胺和ω -氯乙酰 - 2 ,6 -二甲基苯胺缩合制得 ,而14 C -二乙胺由Ba14 CO3 途径K14 CN和CH3 14 CN氢化而制得。14 C -二乙胺和14 C -利多卡因各自用HPLC和TLC检定放化纯度 >99%。它为研究肝储备功能动物呼...14 C -利多卡因由14 C -二乙胺和ω -氯乙酰 - 2 ,6 -二甲基苯胺缩合制得 ,而14 C -二乙胺由Ba14 CO3 途径K14 CN和CH3 14 CN氢化而制得。14 C -二乙胺和14 C -利多卡因各自用HPLC和TLC检定放化纯度 >99%。它为研究肝储备功能动物呼气试验提供了有力的手段。展开更多
文摘This paper described the ~3H NMR determination of the positions and content of 24 tritium labeled aromatic and heterocyclic compounds prepared by catalytic tritiation derivatives, pyrrole, 1,2,4-triazole, thiazole, benzothiazole, purine and derivatives, indole, indanol, piperidine and derivative, diphenylamine, N- phenylanthranilic acid, 8- OH- quinoline, naphthol, diphenylether have been tritiated by catalytic exchange method using tritiated water and platinum catalyst (from the dioxide and sodium borohydride), and the pattern of labelling has been assigned by ~3H NMR spectroscopy. The results show that this exchange process can give general labelling compounds at various time and temperatures. For 4-Br-diphenylether, Raney nickel was used instead of Pt as a catalyst.
文摘An efficient procedure for the synthesis of agmatine labelled with tritium and deuterium is reported. The final tritiated product 4 was obtained with a specific activity of 40 Ci/mmol and a radiochemical purity of 95%.
文摘In this study the compatible chemical and biological investigations of several N-phenylquinolinium derivatives have been carried out in order to find the most perspective quinolinium structures for the nuclear-chemical synthesis of tritium labeled biomarkers.
文摘14 C -利多卡因由14 C -二乙胺和ω -氯乙酰 - 2 ,6 -二甲基苯胺缩合制得 ,而14 C -二乙胺由Ba14 CO3 途径K14 CN和CH3 14 CN氢化而制得。14 C -二乙胺和14 C -利多卡因各自用HPLC和TLC检定放化纯度 >99%。它为研究肝储备功能动物呼气试验提供了有力的手段。
