Negative-ion mass spectrum of some analogs of 11-deoxyprostaglandins E1

The results of a study of the mass spectra of the negative ions formed in the dissociative capture of electrons by the molecules of some analogs of 11-prostaglandins E₁ have shown that from the fragments of the compound under consideration it is possible to single out two “centers” of electron capture: R and the remaining fragment of the molecule. The presence of fragments characteristic for each group of processes and their simplicity and distinctness permit this method to be used successfully for determining the structures of compounds of the given class.