Phenanthrenes, 9,10-dihydrophenanthrenes, bibenzyls with their derivatives, and malate or tartrate benzyl ester glucosides from tubers of Cremastra appendiculata

Seven 9,10-dihydrophenanthrene derivatives and four malate benzyl ester glucosides, along with 23 known compounds were isolated from tubers of Cremastra appendiculata. Among the compounds obtained, one compound showed moderate while five showed weak cytotoxic activity against the A549 cell line.