Gas Chromatography Electron Ionization Mass Spectral Analysis of Thio Analogues of Pyrimidine Bases: 5-Bromo-2,4-di-o-(m- and p-) chloro- (bromo-)benzylthiouracils and 6-methyluracils
Figure 3
Tautomeric forms of S-substituted 2-thio-5-bromouracils (I), 4-thio-5-bromouracils (II), and 2,4-dithio-5-bromouracils (III).
