2D NMR- NOESY spectroscopy

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anupguru's picture
2D NMR- NOESY spectroscopy

 My question:

If in an non-exchangeable nucleotide assignment based on DNA sequence( if its a 9 mer sequence), all the peaks in an aromatic region(6-8ppm) are not connected in all of the 9 signals from sugar prime?

What are the alternatives that will allow to connect all the peaks in the aromatic region with the 9 signals?