Fig. 3

NMR analysis for the purified compound. a Heteronuclear multiple-bond correlation. b 1H and 13C-NMR chemical shifts assignments for naringenin in acetone-d6
NMR analysis for the purified compound. a Heteronuclear multiple-bond correlation. b 1H and 13C-NMR chemical shifts assignments for naringenin in acetone-d6