Abstract

The paper presents mass spectra as well as fragmentation processes under electron impact for the following new compounds with potential biological activity (1) S-2-oxobenzoxazolin-3-yl methyl diphenylphosphinodithioate, (2) S-6-chloro-2-oxobenzoxazolin-3-yl methyl diphneylphosphodithiote, (3) S-2-oxobenzoxazolin-3-yl methyl O, O-diphenyl phosphorodithiate, (4) S-6-chloro-2-oxobenzoxazolin-3-yl methyl O,O-diphenyl phosphorodithioate, (5) S-2-oxobenzoxazoline-3-yl diphenyl phosphinothioate. The fragmentation patterns have been determined by exact mass measurements and by metastable transitions. The determination of these substances from different matrices by mass spectrometry methods is discussed.

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