Lanceomigine N-oxide. A structural examination using 1H nuclear magnetic resonance and transient nuclear Overhauser effect measurements
Abstract
The structure of lanceomigine N-oxide (7) has been examined using a combination of 1H–1H spin–spin coupling and nuclear Overhauser enhancement data measured at 300 MHz. It is shown that all details of the structure are susceptible to elucidation using these methods including the recognition of the rare N-1–C-17-bond.