Method for rapidly marking Cys-Annexin V through <18>F and application of method
A 18f-al-nota-cys-annexinv and labeling technology, applied in the field of PET imaging, can solve the problems of low efficiency, long labeling time, and low labeling rate, so as to solve the problems of low labeling rate, improve labeling rate, and shorten labeling the effect of time
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Embodiment 1
[0050] described in this example 18 The method for rapidly labeling Cys-AnnexinV in F, specifically comprises the following steps:
[0051] (1) 18 The preparation of F-Al-NOTA-Maleimide: get the containing 18 F target water 200μL (about 3700MBq), add 200μL containing AlCl 3 A sodium acetate-acetic acid buffer solution with a concentration of 0.5mol / L, pH=4 and 200 μL of an acetonitrile solution containing 5 mg / mL of NOTA-maleimide, wherein the AlCl 3 AlCl in the buffer solution 3 The concentration is 10mg / mL, mix well and react at 90°C for 10 minutes to get 18 F-Al-NOTA-Maleimide, prepared from 18 The F-Al-NOTA-Maleimide solution was purified by preparative HPLC, and the chromatographic conditions were: preparative reversed-phase C18 column (Phenomenex00G-4252-N0, 5 μm, 250x10mm), with a mass concentration of 0.1% trifluoroacetic acid and a mass concentration of 10% acetonitrile solution as the mobile phase for eluting, the flow rate is 2mL / min, the detection wavelength...
Embodiment 2
[0057] described in this example 18 The method for rapidly labeling Cys-AnnexinV in F, specifically comprises the following steps:
[0058] (1) 18 The preparation of F-Al-NOTA-Maleimide: get the containing 18 F target water 200μL (about 3700MBq), add 150μL AlCl containing 10mg / mL 3 The sodium acetate-acetic acid buffer solution with a concentration of 0.5 mol / L and pH=4 and 300 μL acetonitrile solution containing 5 mg / mL NOTA-maleimide were mixed evenly and reacted at 90°C for 10 minutes to obtain 18 F-Al-NOTA-Maleimide, prepared from 18 The F-Al-NOTA-Maleimide solution was purified by preparative HPLC, and the chromatographic conditions were: preparative reversed-phase C18 column (Phenomenex00G-4252-N0, 5 μm, 250x10mm), with a mass concentration of 0.01% trifluoroacetic acid and a mass concentration of 30% acetonitrile solution as the mobile phase for elution, the flow rate is 0.5mL / min, the detection wavelength is 210nm, and the peak time of collection is 13.5min. The ...
Embodiment 3
[0062] described in this example 18 The method for rapidly labeling Cys-AnnexinV in F, specifically comprises the following steps:
[0063] (1) 18 The preparation of F-Al-NOTA-Maleimide: get the containing 18 F target water 250μL (about 3700MBq), add 100μL AlCl containing 5mg / mL 3 The sodium acetate-acetic acid buffer solution with a concentration of 0.2 mol / L and pH=5 and 100 μL acetonitrile solution containing 10 mg / mL NOTA-maleimide were mixed evenly and reacted at 80°C for 20 minutes to obtain 18 F-Al-NOTA-Maleimide, prepared from 18 The F-Al-NOTA-Maleimide solution was purified by preparative HPLC, and the chromatographic conditions were: preparative reversed-phase C18 column (Phenomenex00G-4252-N0, 5 μm, 250x10mm), with a mass concentration of 1% trifluoroacetic acid and a mass concentration of 4% acetonitrile solution as the mobile phase for eluting, the flow rate is 6mL / min, the detection wavelength is 230nm, and the collected peak time is 7.5min. Components, whi...
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