Carbon-13 nuclear magnetic resonance assignments of pactamycin and related compounds

All resonances observed in the 13C NMR spectrum of the antitumor antibiotic pactamycin and its degradation product pactamyçate have been assigned, employing off-resonance and specific proton decoupling as well as comparison with the 13C NMR spectra of the model compounds m-aminoacetophenone and ethyl 6-methylsalicylate.