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  • Title: Electrospray ionization mass spectra of amino acid phosphoramidates of adenosine.
    Author: Fu H, Xu L, Lv Q, Wang JZ, Xiao HZ, Zhao YF.
    Journal: Rapid Commun Mass Spectrom; 2000; 14(19):1813-22. PubMed ID: 11006590.
    Abstract:
    Amino acid phosphoramidates of adenosine were synthesized and determined by positive and negative ion electrospray ionization mass spectrometry (ESI-MS) in conjunction with tandem mass spectrometry (MS/MS). The fragmentation pathways were investigated. In the positive ion mass spectra abundant characteristic fragment ions appeared, and many complementary ions were found. In the negative ion mass spectra only a few fragment ions were observed, and most of them contained phosphoryl groups. The results show that ESI-MS is a useful tool for structural determination of amino acid phosphoramidates of nucleosides.
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