Unequivocal assignments of flavonoids from Tephrosia sp. (Fabaceae).

A M C Arriaga, J Q Lima, J N Vasconcelos, M C F de Oliveira, M Andrade-Neto, G M P Santiago, D E A Uchoa, G T Malcher, J Mafezoli, R Braz-Filho

Curso de Pós-graduação em Química, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Cx Postal 12200, CEP 60451-970, Fortaleza-CE, Brazil. angelamcarriaga@yahoo.com.br

Magnetic resonance in chemistry : MRC 2009 Jun

filter terms:

1)H and (13)C NMR chemical shifts of praecansone B, pongaflavone and dehydrorotenone isolated from Tephrosia egregia Sandw and obovatin from T. toxicaria Pers. were unambiguously assigned by 1D and 2D NMR experiments including (1)H, (1)H COSY, gHMQC and gHMBC, allowing the correction of literature assignments. 2009 John Wiley & Sons, Ltd.

Citation

A M C Arriaga, J Q Lima, J N Vasconcelos, M C F de Oliveira, M Andrade-Neto, G M P Santiago, D E A Uchoa, G T Malcher, J Mafezoli, R Braz-Filho. Unequivocal assignments of flavonoids from Tephrosia sp. (Fabaceae). Magnetic resonance in chemistry : MRC. 2009 Jun;47(6):537-40