title: Electrospray ionization tandem mass spectrometric characteristics and fragmentation mechanisms of distamycin analogues.
abstract: The electrospray ionization tandem mass spectrometric (ESI-MS/MS) characteristics and fragmentation mechanisms of eight distamycin analogues containing N-methylpyrrole and N-methylimidazole were investigated. The members of two isomeric groups of distamycin analogues with the same elemental composition can be distinguished by MS/MS spectra of protonated molecules and of significant fragment ions.
authors: Department of Chemical Biology, The Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education, College of Chemistry, Peking University, Beijing 100871, PR China.
authors: Feili
authors: F
authors: Tang
authors: Jin
authors: J
authors: Wang
authors: Dan
authors: D
authors: Liu
authors: Gu
authors: G
authors: Yuan
authors: Yen
authors: Y
authors: Liu
authors: Chang
authors: C
authors: Jin Zhu
authors: Yu
authors: Y
authors: Fen Zhao
mesh_terms: D000998:Antiviral Agents / Q000032:analysis*; D004214:Distamycins / Q000032:analysis*; D007093:Imidazoles / Q000032:analysis; D015394:Molecular Structure; D011758:Pyrroles / Q000032:analysis; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*
chemical_list: D000998:Antiviral Agents; D004214:Distamycins; D007093:Imidazoles; D011758:Pyrroles; C030000:stallimycin; C096654:N-methylpyrrole; C018100:1-methylimidazole