Sesquiterpenoids and phenolics from roots of Cichorium endivia var. crispum

Twelve known sesquiterpene lactones and the new guaianolide 10β-methoxy-1α, 11β,13-tetrahydrolactucin (10), together with three known phenolic acid esters were isolated from roots of Cichorium endivia var. crispum. The compounds were characterized by spectral methods.