| DDF | 6,8-diprenyl-7,4′-dihydroxyflavanone |
| So | sophoranone |
| Gl | glabrol |
| 5DTF | 8,5′-diprenyl-7,2′,4′-trihydroxyflavanone |
| Fl | flemichin D |
| To | tonkinochromane A |
| SC | sophoranochromene |
| iNOS | inducible nitric oxide synthases |
| MAPKs | mitogen-activated protein kinases |
| NF-κB | nuclear factor-kappa B |