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Synthesis and Biological Evaluation of Substituted Fused Dipyranoquinolinones
- Evangelia-Eirini N. Vlachou,
- Eleni Pontiki,
- Dimitra J. Hadjipavlou-Litina and
- Konstantinos E. Litinas
New methyl-substituted, and diphenyl-substituted fused dipyranoquinolinones are prepared in excellent yields via the triple bond activation and 6-endo-dig cyclization of propargyloxycoumarin derivatives by gold nanoparticles supported on TiO2 in chlo...