The natural furochromone khellin (4,9-dimethoxy-7-methyl-5H-furo[3,2-g]chromen-5-one), obtained from the fruits and seeds of Ammi visnaga L. possesses a high antiatherosclerotic and lipid-altering activity 6 and is the active constituent of many modern medicines. 7 In view of the unique biological properties displayed by khellin on the one hand and by many fluorinated heterocyclic compounds 8 on the other hand, we have described recently 9 the synthesis of 7-trifluoro- and ...
![7-hydroxy-4,9-dimethoxy-7-(trifluoromethyl)-6,7-dihydro-5H-furo[3,2-g]chromen-5-one Structure](https://image.chemsrc.com/caspic/419/321965-75-7.png)
![4,9-dimethoxy-7-(trifluoromethyl)furo[3,2-g]chromen-5-one Structure](https://image.chemsrc.com/caspic/030/76301-24-1.png)
