Monitoring the Reactions of the Anticancer Drug Carboplatin with the Chemopreventive Agent Selenomethionine by Electrospray Mass Spectrometry and [1H,15N] HSQC NMR Spectroscopy
作者:Qin Liu、Jun Lin、Pengju Jiang、Junyong Zhang、Longgen Zhu、Zijian Guo
DOI:10.1002/1099-0682(200208)2002:8<2170::aid-ejic2170>3.0.co;2-k
日期:2002.8
[Pt(NH3)2(CBDCA-O)(L-Se-MetH-Se)] (1), the long-lived ring-opened adduct, [Pt(NH3)(CBDCA-O)(L-Se-Met-Se,N)] (2), [Pt(CBDCA-O,O)(L-Se-MetH-Se,N)] (3) and [Pt(L-Se-Met-Se,N)2] (4). The reaction of carboplatin with L-MetH is very similar to that with L-Se-MetH, except for a slower reaction rate. Interestingly, we observed the dimer and polymer forms of carboplatin in solution by electrospray mass spectrometry. This work
第二代铂类抗癌药卡铂与L-硒代甲硫氨酸(L-Se-MetH)和L-甲硫氨酸(L-MetH)的反应(使用缩写:L-Se-MetH:L-硒代甲硫氨酸;L-Se-Met :去质子化的 L-硒代甲硫氨酸;L-MetH:L-甲硫氨酸;L-Met:去质子化的 L-甲硫氨酸)通过 ESMS 和 2D [1H,15N] HSQC NMR 光谱进行研究。两种技术的结合提供了 [Pt(NH3)2(CBDCA-O)(L-Se-MetH-Se)] (1)、长寿命的开环加合物 [Pt(NH3) (CBDCA-O)(L-Se-Met-Se,N)] (2), [Pt(CBDCA-O,O)(L-Se-MetH-Se,N)] (3) 和 [Pt(L -Se-Met-Se,N)2] (4)。卡铂与 L-MetH 的反应与与 L-Se-MetH 的反应非常相似,只是反应速度较慢。有趣的是,我们通过电喷雾质谱法观察了溶液中卡铂的