title: Antineoplastic and piscicidal 1-alkyldaphnane orthoesters from Pimelea species.
abstract: Five biologically active daphnane orthoesters have been isolated from Pimelea species (Thymelaeaceae). Four of these possessing antineoplastic activity against in vivo murine P-388 lymphocytic leukemia are gnidimacrin from P. ligustrina, simpleximacrin from P. simplex, linimacrin d and Pimelea factor P3 from P. linifolia. Linimacrin c from P. linifolia and the other four compounds showed piscicidal activity. Gnidimacrin and Pimelea factor P3 have previously been isolated from other members of the Thymelaeaceae. Simpleximacrin and linimacrins c and d are new compounds.
mesh_terms: D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000302:isolation & purification*; D005399:Fishes; D007941:Leukemia P388 / Q000188:drug therapy; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D010936:Plant Extracts / Q000633:toxicity; D010946:Plants, Medicinal / Q000032:analysis*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D010936:Plant Extracts