K. Ghirtis et al., Synthesis and conformational analysis of some new pyrano[2,3-c]xanthen-7-one and pyrano[3,2-b]xanthen-6-one derivatives with cytotoxic activity, HETEROCYCLE, 53(1), 2000, pp. 93-106
The synthesis, conformational analysis and preliminary biological evaluatio
n of some new pyrano[2,3-c]xanthen-7-ones and pyrano[3,2-b]xanthen-6-ones i
s described. Certain compounds possess interesting cytotoxic activity again
st murine leukemia L1210 cells.