Differentiation between 3,4- and 4,15-Epoxyeudesmanolides by Electrospray Ionization Tandem Mass Spectrometry

<div>Formation of the general product ions<b> B</b>,<b> C</b>,<b> E</b>,<b> F,</b> and<b> H</b> of protonated<b> 1</b> and<b> 2</b>.</div>

Journal of Analytical Methods in Chemistry

Scheme 2: Differentiation between 3,4- and 4,15-Epoxyeudesmanolides by Electrospray Ionization Tandem Mass Spectrometry 