Yk. Rao et al., Total synthesis of heliannone A and (R,S)-heliannone B, two bioactive flavonoids from Helianthus annuus cultivars, J NAT PROD, 64(3), 2001, pp. 368-369
The total synthesis of heliannone A (1) and (R,S)-heliannone B (2), two bio
active flavonoids originally isolated from Helianthus annuus cultivars, is
described.