TY - JOUR TI - Synthesis and conformational analysis of some new pyrano[2, 3-c]xanthen-7-one and pyrano[3, 2-a]xanthen-6one derivatives with cytotoxic activity AU - Ghirtis, K. AU - Pouli, N. AU - Marakos, P. AU - Skaltsounis, A.-L. AU - LĂ©once, S. AU - Caignard, D.H. AU - Atassi, G. JO - Heterocycles PY - 2000 VL - 53 TODO - 1 SP - 93-106 PB - Japan Institute of Heterocyclic Chemistry SN - 0385-5414, 1881-0942 TODO - 10.3987/com-99-8727 TODO - acronine; antineoplastic agent; pyrano[2,3 c]xanthen 7 one; pyrano[3,2 b]xanthen 6 one; unclassified drug, animal cell; antineoplastic activity; article; controlled study; cytotoxicity; drug screening; drug structure; drug synthesis; mouse; murine leukemia; nonhuman; structure analysis TODO - The synthesis, conformational analysis and preliminary biological evaluation of some new pyrano[2, 3-c]xanthen-7-ones and pyrano[3, 2-o]xanthen6-ones is described. Certain compounds possess interesting cytotoxic activity against murine leukemia L1210 cells. ER -