TY - JOUR
T1 - Ion trap tandem mass spectrometry of C-and N-methyl, benzyl, and prenyl substituted 2-oxopyrrolidinoindolines
AU - Morales-Ríos, Martha S.
AU - Burgueño-Tapia, Eleuterio
AU - Pérez-Rojas, Nadia A.
AU - Mora-Pérez, Yolanda
AU - Alvarez-Cisneros, Celina
PY - 2012
Y1 - 2012
N2 - The electron impact induced fragmentations of C- and N-methyl, benzyl, and prenyl substituted 2-oxopyrrolidinoindolines were studied using an ion trap mass spectrometer (IT-MS). Correlations of characteristic fragment ions of the 2-oxopyrrolidinoindoline skeleton with specific modifications of the substituents around it were supported by stepwise fragmentation MS/MS analysis and accurate mass measurements. The MS3 spectra evidenced the neutral loss of methyl- or benzylisocyanate from the 2-oxopyrrolidine ring, which would result in a rearranged stable quinolinium ion.
AB - The electron impact induced fragmentations of C- and N-methyl, benzyl, and prenyl substituted 2-oxopyrrolidinoindolines were studied using an ion trap mass spectrometer (IT-MS). Correlations of characteristic fragment ions of the 2-oxopyrrolidinoindoline skeleton with specific modifications of the substituents around it were supported by stepwise fragmentation MS/MS analysis and accurate mass measurements. The MS3 spectra evidenced the neutral loss of methyl- or benzylisocyanate from the 2-oxopyrrolidine ring, which would result in a rearranged stable quinolinium ion.
KW - 2-oxopyrrolidinoindolines
KW - Accurate mass
KW - EI-ion trap
KW - MS/MS analysis
KW - Mass spectra
KW - Quinolinium ion
UR - http://www.scopus.com/inward/record.url?scp=84875147424&partnerID=8YFLogxK
M3 - Artículo
SN - 0370-5943
VL - 40
SP - 130
EP - 139
JO - Revista Latinoamericana de Quimica
JF - Revista Latinoamericana de Quimica
IS - 3
ER -