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- W2353628847 abstract "A series of novel 4-aminopyridine derivatives containing N-diisopropyloxyphosphoryl amino acid unit were synthesized as highly efficient antidotes of tetradotoxin,a marine organism toxin.The fragmentation pathway of as-synthesized N-diisopropyloxyphosphoryl amino acid-N-4-aminopyridines was investigated by means of positive ion electrospray ionization mass spectrometry(ESI-MS)in conjunction with tandem mass spectrometry(MS/MS).Moreover,the fragmentation pathway of fragment ion m/z=95 was proposed,and its possible rearrangement mechanism was supposed.Results indicate that all the compounds under investigation have fragment ion c/c′with the same molecular weight,and fragment ion c/c′is derived from precursor ions a and b.Such a fragmentation pathway can be verified by introducing tracer element Cl onto the pyridine ring of the title derivatives,while the fragment ion m/z = 95 is generated by way of ion rearrangement." @default.
- W2353628847 created "2016-06-24" @default.
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- W2353628847 date "2013-01-01" @default.
- W2353628847 modified "2023-09-27" @default.
- W2353628847 title "Fragmentation pathway of several 4-aminopyridine derivatives in multistage mass spectrometry" @default.
- W2353628847 hasPublicationYear "2013" @default.
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