1H and 13C NMR Spectra of 9H-Pyrimido[4,5-b]indoles
Based on analysis of 1H and 13C NMR spectra of 9H-pyrimido[4,5-b]indole and its 4-phenyl-2-substituted derivatives, we have made assignments for the signals from the 1H and 13C atoms of these compounds.