https://doi.org/10.1351/goldbook.09969
The isoflavonoids are compounds derived from the parent structure 3-phenyl-3,4-dihydro-2\(H\)-1-benzopyran (8).
Source:
PAC, 2018, 90, 1429. 'Nomenclature of flavonoids (IUPAC Recommendations 2017)' on page 1433 (https://doi.org/10.1515/pac-2013-0919)
PAC, 2018, 90, 1429. 'Nomenclature of flavonoids (IUPAC Recommendations 2017)' on page 1433 (https://doi.org/10.1515/pac-2013-0919)