Chemical ionization mass spectrometry with amines as reactant gases. VIII—amine chemical ionization mass spectrometry of some steroids

Abstract

The chemical ionization ma= spectra of different groups of steroids (sterols, dihydroxy sterols, epoxy sterols and epidioxy sterols) were investigated. Triethylamine, diethylamine, ethylenediamioe, methylamine aod ammonia were used as reactant gases. The possibilities of establishing the relative molecular masses and some structural nod stereochemical features of different steroids are discussed.

Peroxy natural products

“…261 Techniques for the analysis and characterization of epidioxy sterols by chemical ionization-mass spectrometry have been reported. 286 Besides endoperoxides, steroids containing hydroperoxy groups of have also been identified. 24-Hydroperoxy-24-vinylcholesterol 275, a highly cytotoxic compound, was recovered from the brown alga Turbinaria conoids.…”