| ||
Name | R1 | R2 |
(1) xanthotoxol | H | OH |
(2) 5-hydroxy-8-methoxy psoralen | OH | OCH3 |
(3) oxypeucedanin hydrate |
| H |
(4) bergapten | OCH3 | H |
(5) imperatorin | H |
|
(6) cnidilin |
| OCH3 |
(7) isoimperatorin |
| H |