Structure revision of an isoflavonoid
Sunday, November 1, 2009

Structure revision of an isoflavonoid from Erythrina variegata

By reanalysis of NMR data of 2 in the reference1) and  comparison with those of lupinisolone A2), the structure of an isoflavonoid from Erythrina variegata should be revised as follows:

References:

1) X. L. Li, et al. Four new isoflavonoids from the stem bark of Erythrina variegata. Chem. Pharm. Bull., 2006, 54(4): 570-573.

2) S. Tahara, et al. Seventeen isoflavonoids from Lupinus albus roots. Phytochemistry, 1989, 28(3): 901-911.