Electrospray ionization-tandem mass spectrometric study of fused nitrogen-containing ring systems.

ABSTRACT: Four fused nitrogen-containing ring systems were investigated by electrospray ionization-tandem mass spectrometry: Pyridazino-indoles, pyridazino-quinolines, a pyrimido-quinoline derivative and pyrimido-cinnolines. Fragmentation patterns of these compounds are discussed and compared. Several characteristic cross-ring fragments were formed mainly on the pyridazine and pyrimidine rings of the ring systems. The connected Cl, NO₂ , Me, Ph and more extended heterocyclic substituents influenced the fragmentation.

SUBMITTER: Krajsovszky G 

PROVIDER: S-EPMC9285442 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature