ChemInform Abstract: 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.
Abstract
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ChemInform Abstract
Preliminary biological evaluation of the title compounds reveals promising (IVa, Va, VII) and high (VI) in vitro cytotoxic activities against L1210 leukemic cell line. Compounds (VI) and (VII) are prepared from (IV) and (V) by established procedures.