The high field1H and13C resonances of obacunone were established by a series of I D and 2D NMR experiments. The13C-NMR signals of the five tertiary methyl groups and all quatenary carbons were unambiguously assigned. The results confirm the stereochemical assignments at all stereogenic centres.
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Rugutt, J.k.
,
Fischer, N.H.
,
Nauman, M.A.
,
Schidt, T.J.
,
Berner, D.K.
,
[13CNMR assignments for methyls and quarternary carbons of the limonoid abacunone]
,
13CNMR assignments for methyls and quarternary carbons of the limonoid abacunone
