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Complete spectral assignments of tatsidine by two‐dimensional NMR techniques

Homonuclear 1H COSY, long‐range COSY and relay coherence transfer (RCT) correlation spectroscopy NMR experiments were used together with fixed‐evolution HETCOR and selective INEPT spectra for complete 13C and 1H spectral peak assignments for tatsidine. Stereochemical and conformational assignments were made from the two‐dimensional NOE spectrum. The results of these studies confirmed the location of the methylenedioxy group at C‐7/C‐8.