title: Natural coumarins. V. Isolation of xanthalin and a new pyranocoumarin, peuarenine, from Peucedanum arenarium W.K.
mesh_terms: D004988:Ethers, Cyclic / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D009904:Optical Rotation; D010944:Plants / Q000032:analysis; D014631:Valerates / Q000302:isolation & purification; D014966:Xanthenes / Q000302:isolation & purification*
chemical_list: D004988:Ethers, Cyclic; D014631:Valerates; D014966:Xanthenes